diff --git a/css/swad21.70.1.css b/css/swad21.70.1.css
index 303cfce5..7866d72e 100644
--- a/css/swad21.70.1.css
+++ b/css/swad21.70.1.css
@@ -50,6 +50,14 @@ textarea
 	font-size:13pt;
 	font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;
 	}
+.INPUT_WHITE	{}
+.INPUT_GREY	{}
+.INPUT_PURPLE	{}
+.INPUT_BLUE	{}
+.INPUT_YELLOW	{}
+.INPUT_PINK	{}
+.INPUT_DARK	{background-color:#1f1f1f;color:white;}
+
 table
 	{
 	box-sizing:border-box;
@@ -248,13 +256,13 @@ a:hover						/* Default ==> underlined */
 		text-overflow:ellipsis;
 		}
 	}
-.USR_WHITE		{color:#b0b0b0; font-size:15pt; font-weight:bold; white-space:nowrap;}
-.USR_GREY		{color:#e0e0e0; font-size:15pt; font-weight:bold; white-space:nowrap;}
-.USR_PURPLE		{color:#e0e0e0; font-size:15pt; font-weight:bold; white-space:nowrap;}
-.USR_BLUE		{color:white;   font-size:15pt; font-weight:bold; white-space:nowrap;}
-.USR_YELLOW		{color:#b3b0b3; font-size:15pt; font-weight:bold; white-space:nowrap;}
-.USR_PINK		{color:white;   font-size:15pt; font-weight:bold; white-space:nowrap;}
-.USR_DARK		{color:#e0e0e0; font-size:15pt; font-weight:bold; white-space:nowrap;}
+.USR_WHITE	{color:#b0b0b0; font-size:15pt; font-weight:bold; white-space:nowrap;}
+.USR_GREY	{color:#e0e0e0; font-size:15pt; font-weight:bold; white-space:nowrap;}
+.USR_PURPLE	{color:#e0e0e0; font-size:15pt; font-weight:bold; white-space:nowrap;}
+.USR_BLUE	{color:white;   font-size:15pt; font-weight:bold; white-space:nowrap;}
+.USR_YELLOW	{color:#b3b0b3; font-size:15pt; font-weight:bold; white-space:nowrap;}
+.USR_PINK	{color:white;   font-size:15pt; font-weight:bold; white-space:nowrap;}
+.USR_DARK	{color:#e0e0e0; font-size:15pt; font-weight:bold; white-space:nowrap;}
 
 #head_row_1_right
 	{
diff --git a/swad_ID.c b/swad_ID.c
index 261bbd68..a1b4e107 100644
--- a/swad_ID.c
+++ b/swad_ID.c
@@ -500,6 +500,7 @@ static void ID_ShowFormChangeUsrID (bool ItsMe,bool IShouldFillInID)
   {
    extern const char *Hlp_PROFILE_Account;
    extern const char *The_ClassDat[The_NUM_THEMES];
+   extern const char *The_ClassInput[The_NUM_THEMES];
    extern const char *Txt_Please_fill_in_your_ID;
    extern const char *Txt_ID_X_confirmed;
    extern const char *Txt_ID_X_not_confirmed;
@@ -627,7 +628,8 @@ static void ID_ShowFormChangeUsrID (bool ItsMe,bool IShouldFillInID)
 				  UsrDat->IDs.Num ? UsrDat->IDs.List[UsrDat->IDs.Num - 1].ID :
 						    "",	// Show the most recent ID
 				  HTM_DONT_SUBMIT_ON_CHANGE,
-				  "id=\"NewID\" size=\"18\"");
+				  "id=\"NewID\" class=\"%s\" size=\"18\"",
+				  The_ClassInput[Gbl.Prefs.Theme]);
 		  HTM_BR ();
 		  Btn_PutCreateButtonInline (Txt_Add_this_ID);
 	       Frm_EndForm ();
diff --git a/swad_changelog.h b/swad_changelog.h
index b27b846c..9f142f46 100644
--- a/swad_changelog.h
+++ b/swad_changelog.h
@@ -602,12 +602,13 @@ TODO: FIX BUG, URGENT! En las fechas como par
 
 TODO: En las encuestas, que los estudiantes no puedan ver los resultados hasta que no finalice el plazo.
 */
-#define Log_PLATFORM_VERSION	"SWAD 21.70.1 (2021-12-15)"
+#define Log_PLATFORM_VERSION	"SWAD 21.70.2 (2021-12-15)"
 #define CSS_FILE		"swad21.70.1.css"
 #define JS_FILE			"swad21.67.4.js"
 /*
 // TODO: al ver los resultados de un juego como profesor, el rol del estudiante sale como desconocido y no se puede ver el DNI
 
+	Version 21.70.2:  Dec 15, 2021  Working on design of dark theme. (321449 lines)
 	Version 21.70.1:  Dec 15, 2021  Working on design of dark theme. (321305 lines)
 	Version 21.70:    Dec 15, 2021  Working on design of dark theme. (321252 lines)
 	Version 21.69:    Dec 15, 2021  Working on design of dark theme. (321089 lines)
diff --git a/swad_course.c b/swad_course.c
index abe99f83..8804f607 100644
--- a/swad_course.c
+++ b/swad_course.c
@@ -767,6 +767,7 @@ void Crs_FreeListCoursesInCurrentDegree (void)
 
 void Crs_WriteSelectorMyCoursesInBreadcrumb (void)
   {
+   extern const char *The_ClassInput[The_NUM_THEMES];
    extern const char *Txt_Course;
    unsigned NumMyCrs;
    long CrsCod;
@@ -785,7 +786,8 @@ void Crs_WriteSelectorMyCoursesInBreadcrumb (void)
 
       /***** Begin selector of courses *****/
       HTM_SELECT_Begin (HTM_SUBMIT_ON_CHANGE,
-			"id=\"my_courses\" name=\"crs\"");
+			"id=\"my_courses\" name=\"crs\" class=\"%s\"",
+			The_ClassInput[Gbl.Prefs.Theme]);
 
 	 /***** Write an option when no course selected *****/
 	 if (Gbl.Hierarchy.Crs.CrsCod <= 0)	// No course selected
diff --git a/swad_course_config.c b/swad_course_config.c
index 404f8c82..db08bc86 100644
--- a/swad_course_config.c
+++ b/swad_course_config.c
@@ -208,6 +208,7 @@ static void CrsCfg_Title (bool PutLink)
 static void CrsCfg_Degree (bool PrintView,bool PutForm)
   {
    extern const char *The_ClassDat[The_NUM_THEMES];
+   extern const char *The_ClassInput[The_NUM_THEMES];
    extern const char *Txt_Degree;
    unsigned NumDeg;
 
@@ -230,7 +231,8 @@ static void CrsCfg_Degree (bool PrintView,bool PutForm)
 	    Frm_BeginForm (ActChgCrsDegCfg);
 	       HTM_SELECT_Begin (HTM_SUBMIT_ON_CHANGE,
 				 "id=\"OthDegCod\" name=\"OthDegCod\""
-				 " class=\"INPUT_SHORT_NAME\"");
+				 " class=\"INPUT_SHORT_NAME %s\"",
+				 The_ClassInput[Gbl.Prefs.Theme]);
 		  for (NumDeg = 0;
 		       NumDeg < Gbl.Hierarchy.Degs.Num;
 		       NumDeg++)
@@ -297,6 +299,7 @@ static void CrsCfg_ShrtName (bool PutForm)
 static void CrsCfg_Year (bool PutForm)
   {
    extern const char *The_ClassDat[The_NUM_THEMES];
+   extern const char *The_ClassInput[The_NUM_THEMES];
    extern const char *Txt_Year_OF_A_DEGREE;
    extern const char *Txt_YEAR_OF_DEGREE[1 + Deg_MAX_YEARS_PER_DEGREE];
    extern const char *Txt_Not_applicable;
@@ -316,7 +319,9 @@ static void CrsCfg_Year (bool PutForm)
 	   {
 	    Frm_BeginForm (ActChgCrsYeaCfg);
 	       HTM_SELECT_Begin (HTM_SUBMIT_ON_CHANGE,
-				 "id=\"OthCrsYear\" name=\"OthCrsYear\"");
+				 "id=\"OthCrsYear\" name=\"OthCrsYear\""
+				 " class=\"%s\"",
+				 The_ClassInput[Gbl.Prefs.Theme]);
 		  for (Year = 0;
 		       Year <= Deg_MAX_YEARS_PER_DEGREE;
 		       Year++)
@@ -341,6 +346,7 @@ static void CrsCfg_Year (bool PutForm)
 static void CrsCfg_InstitutionalCode (bool PutForm)
   {
    extern const char *The_ClassDat[The_NUM_THEMES];
+   extern const char *The_ClassInput[The_NUM_THEMES];
    extern const char *Txt_Institutional_code;
 
    /***** Institutional course code *****/
@@ -359,8 +365,10 @@ static void CrsCfg_InstitutionalCode (bool PutForm)
 	       HTM_INPUT_TEXT ("InsCrsCod",Crs_MAX_CHARS_INSTITUTIONAL_CRS_COD,
 			       Gbl.Hierarchy.Crs.InstitutionalCrsCod,
 			       HTM_SUBMIT_ON_CHANGE,
-			       "id=\"InsCrsCod\" size=\"%u\" class=\"INPUT_INS_CODE\"",
-			       Crs_MAX_CHARS_INSTITUTIONAL_CRS_COD);
+			       "id=\"InsCrsCod\" size=\"%u\""
+			       " class=\"INPUT_INS_CODE %s\"",
+			       Crs_MAX_CHARS_INSTITUTIONAL_CRS_COD,
+			       The_ClassInput[Gbl.Prefs.Theme]);
 	    Frm_EndForm ();
 	   }
 	 else
diff --git a/swad_date.c b/swad_date.c
index f8359231..47857f42 100644
--- a/swad_date.c
+++ b/swad_date.c
@@ -855,6 +855,7 @@ void Dat_WriteFormDate (unsigned FirstYear,unsigned LastYear,
 		        struct Dat_Date *DateSelected,
                         bool SubmitFormOnChange,bool Disabled)
   {
+   extern const char *The_ClassInput[The_NUM_THEMES];
    extern const char *Txt_MONTHS_SMALL[12];
    unsigned Year;
    unsigned Month;
@@ -869,23 +870,29 @@ void Dat_WriteFormDate (unsigned FirstYear,unsigned LastYear,
 	 HTM_TD_Begin ("class=\"CM\"");
 	    if (SubmitFormOnChange)
 	       HTM_SELECT_Begin (HTM_DONT_SUBMIT_ON_CHANGE,
-				 "id=\"%sYear\" name=\"%sYear\"%s"
+				 "id=\"%sYear\" name=\"%sYear\""
+	                         " class=\"%s\""
+	                         "%s"
 				 " onchange=\"adjustDateForm('%s');"
 				 "document.getElementById('%s').submit();return false;\"",
 				 Id,Id,
+				 The_ClassInput[Gbl.Prefs.Theme],
 				 Disabled ? " disabled=\"disabled\"" : "",
 				 Id,
 				 Gbl.Form.Id);
 	    else
 	       HTM_SELECT_Begin (HTM_DONT_SUBMIT_ON_CHANGE,
-				 "id=\"%sYear\" name=\"%sYear\"%s"
+				 "id=\"%sYear\" name=\"%sYear\""
+	                         " class=\"%s\""
+	                         "%s"
 				 " onchange=\"adjustDateForm('%s');\"",
 				 Id,Id,
+				 The_ClassInput[Gbl.Prefs.Theme],
 				 Disabled ? " disabled=\"disabled\"" : "",
 				 Id);
 	    HTM_OPTION (HTM_Type_STRING,"0",false,false,
 			"-");
-	    for (Year = FirstYear;
+	    for (Year  = FirstYear;
 		 Year <= LastYear;
 		 Year++)
 	       HTM_OPTION (HTM_Type_UNSIGNED,&Year,
@@ -898,18 +905,24 @@ void Dat_WriteFormDate (unsigned FirstYear,unsigned LastYear,
 	 HTM_TD_Begin ("class=\"CM\"");
 	    if (SubmitFormOnChange)
 	       HTM_SELECT_Begin (HTM_DONT_SUBMIT_ON_CHANGE,
-				 "id=\"%sMonth\" name=\"%sMonth\"%s"
+				 "id=\"%sMonth\" name=\"%sMonth\""
+	                         " class=\"%s\""
+	                         "%s"
 				 " onchange=\"adjustDateForm('%s');"
 				 "document.getElementById('%s').submit();return false;\"",
 				 Id,Id,
+				 The_ClassInput[Gbl.Prefs.Theme],
 				 Disabled ? " disabled=\"disabled\"" : "",
 				 Id,
 				 Gbl.Form.Id);
 	    else
 	       HTM_SELECT_Begin (HTM_DONT_SUBMIT_ON_CHANGE,
-				 "id=\"%sMonth\" name=\"%sMonth\"%s"
+				 "id=\"%sMonth\" name=\"%sMonth\""
+	                         " class=\"%s\""
+	                         "%s"
 				 " onchange=\"adjustDateForm('%s');\"",
 				 Id,Id,
+				 The_ClassInput[Gbl.Prefs.Theme],
 				 Disabled ? " disabled=\"disabled\"" : "",
 				 Id);
 	    HTM_OPTION (HTM_Type_STRING,"0",false,false,
@@ -926,20 +939,23 @@ void Dat_WriteFormDate (unsigned FirstYear,unsigned LastYear,
 	 /***** Day *****/
 	 HTM_TD_Begin ("class=\"CM\"");
 	    HTM_SELECT_Begin (SubmitFormOnChange,
-			      "id=\"%sDay\" name=\"%sDay\"%s",
+			      "id=\"%sDay\" name=\"%sDay\""
+	                      " class=\"%s\""
+	                      "%s",
 			      Id,Id,
+			      The_ClassInput[Gbl.Prefs.Theme],
 			      Disabled ? " disabled=\"disabled\"" : "");
-	    HTM_OPTION (HTM_Type_STRING,"0",false,false,
-			"-");
-	    NumDaysSelectedMonth = (DateSelected->Month == 0) ? 31 :
-								((DateSelected->Month == 2) ? Dat_GetNumDaysFebruary (DateSelected->Year) :
-											      Dat_NumDaysMonth[DateSelected->Month]);
-	    for (Day  = 1;
-		 Day <= NumDaysSelectedMonth;
-		 Day++)
-	       HTM_OPTION (HTM_Type_UNSIGNED,&Day,
-			   Day == DateSelected->Day,false,
-			   "%u",Day);
+	       HTM_OPTION (HTM_Type_STRING,"0",false,false,
+			   "-");
+	       NumDaysSelectedMonth = (DateSelected->Month == 0) ? 31 :
+								   ((DateSelected->Month == 2) ? Dat_GetNumDaysFebruary (DateSelected->Year) :
+												 Dat_NumDaysMonth[DateSelected->Month]);
+	       for (Day  = 1;
+		    Day <= NumDaysSelectedMonth;
+		    Day++)
+		  HTM_OPTION (HTM_Type_UNSIGNED,&Day,
+			      Day == DateSelected->Day,false,
+			      "%u",Day);
 	    HTM_SELECT_End ();
 	 HTM_TD_End ();
 
diff --git a/swad_degree_type.c b/swad_degree_type.c
index c4d1ebad..4700d20b 100644
--- a/swad_degree_type.c
+++ b/swad_degree_type.c
@@ -98,6 +98,7 @@ static void DegTyp_EditingDegreeTypeDestructor (void);
 
 void DegTyp_WriteSelectorDegreeTypes (long SelectedDegTypCod)
   {
+   extern const char *The_ClassInput[The_NUM_THEMES];
    extern const char *Txt_Any_type_of_degree;
    unsigned NumDegTyp;
 
@@ -107,7 +108,8 @@ void DegTyp_WriteSelectorDegreeTypes (long SelectedDegTypCod)
 
    /* List degree types */
    HTM_SELECT_Begin (HTM_SUBMIT_ON_CHANGE,
-		     "id=\"OthDegTypCod\" name=\"OthDegTypCod\"");
+		     "id=\"OthDegTypCod\" name=\"OthDegTypCod\" class=\"%s\"",
+		     The_ClassInput[Gbl.Prefs.Theme]);
       HTM_OPTION (HTM_Type_STRING,"-1",
 		  SelectedDegTypCod == -1L,false,
 		  "%s",Txt_Any_type_of_degree);
diff --git a/swad_figure.c b/swad_figure.c
index 3d642368..649c8460 100644
--- a/swad_figure.c
+++ b/swad_figure.c
@@ -226,6 +226,7 @@ static void Fig_ReqShowFigure (Fig_FigureType_t SelectedFigureType)
   {
    extern const char *Hlp_ANALYTICS_Figures;
    extern const char *The_ClassFormInBox[The_NUM_THEMES];
+   extern const char *The_ClassInput[The_NUM_THEMES];
    extern const char *Txt_Figures;
    extern const char *Txt_Scope;
    extern const char *Txt_Statistic;
@@ -262,7 +263,8 @@ static void Fig_ReqShowFigure (Fig_FigureType_t SelectedFigureType)
 	 HTM_LABEL_Begin ("class=\"%s\"",The_ClassFormInBox[Gbl.Prefs.Theme]);
 	    HTM_TxtColonNBSP (Txt_Statistic);
 	    HTM_SELECT_Begin (HTM_DONT_SUBMIT_ON_CHANGE,
-			      "name=\"FigureType\"");
+			      "name=\"FigureType\" class=\"%s\"",
+			      The_ClassInput[Gbl.Prefs.Theme]);
 	       for (FigType  = (Fig_FigureType_t) 0;
 		    FigType <= (Fig_FigureType_t) (Fig_NUM_FIGURES - 1);
 		    FigType++)
diff --git a/swad_forum.c b/swad_forum.c
index 25161d38..feff56e6 100644
--- a/swad_forum.c
+++ b/swad_forum.c
@@ -2662,6 +2662,7 @@ static void For_WriteFormForumPst (struct For_Forums *Forums,
    extern const char *Hlp_COMMUNICATION_Forums_new_post;
    extern const char *Hlp_COMMUNICATION_Forums_new_thread;
    extern const char *The_ClassFormInBox[The_NUM_THEMES];
+   extern const char *The_ClassInput[The_NUM_THEMES];
    extern const char *Txt_New_post;
    extern const char *Txt_New_thread;
    extern const char *Txt_MSG_Subject;
@@ -2733,7 +2734,9 @@ static void For_WriteFormForumPst (struct For_Forums *Forums,
       Lay_HelpPlainEditor ();
 
       /***** Attached image (optional) *****/
-      Med_PutMediaUploader (-1,"FOR_MED_INPUT");
+      Med_PutMediaUploader (-1,Str_BuildString ("FOR_MED_INPUT %s",
+	                                        The_ClassInput[Gbl.Prefs.Theme]));
+      Str_FreeStrings ();
 
       /***** Send button *****/
       Btn_PutCreateButton (Txt_Send);
diff --git a/swad_indicator.c b/swad_indicator.c
index a60f728e..e3153869 100644
--- a/swad_indicator.c
+++ b/swad_indicator.c
@@ -94,6 +94,7 @@ void Ind_ReqIndicatorsCourses (void)
    extern const char *Hlp_ANALYTICS_Indicators;
    extern const char *The_ClassFormInBox[The_NUM_THEMES];
    extern const char *The_ClassDat[The_NUM_THEMES];
+   extern const char *The_ClassInput[The_NUM_THEMES];
    extern const char *Txt_Scope;
    extern const char *Txt_Types_of_degree;
    extern const char *Txt_only_if_the_scope_is_X;
@@ -161,10 +162,12 @@ void Ind_ReqIndicatorsCourses (void)
 	       HTM_TD_Begin ("class=\"LT\"");
 		  Dpt_WriteSelectorDepartment (Gbl.Hierarchy.Ins.InsCod,	// Departments in current insitution
 					       Indicators.DptCod,		// Selected department
-					       "INDICATORS_INPUT",		// Selector class
+					       Str_BuildString ("INDICATORS_INPUT %s",
+				                                The_ClassInput[Gbl.Prefs.Theme]),	// Selector class
 					       -1L,				// First option
 					       Txt_Any_department,		// Text when no department selected
 					       true);				// Submit on change
+		  Str_FreeStrings ();
 	       HTM_TD_End ();
 
 	    HTM_TR_End ();
diff --git a/swad_language.c b/swad_language.c
index f945f08d..29e42391 100644
--- a/swad_language.c
+++ b/swad_language.c
@@ -113,13 +113,16 @@ static void Lan_PutIconsLanguage (__attribute__((unused)) void *Args)
 
 void Lan_PutSelectorToSelectLanguage (void)
   {
+   extern const char *The_ClassInput[The_NUM_THEMES];
    extern const char *Txt_STR_LANG_NAME[1 + Lan_NUM_LANGUAGES];
    Lan_Language_t Lan;
    unsigned LanUnsigned;
 
    Frm_BeginForm (ActReqChgLan);
       HTM_SELECT_Begin (HTM_SUBMIT_ON_CHANGE,
-			"name=\"Lan\" style=\"width:112px; margin:0;\"");
+			"name=\"Lan\" class=\"%s\""
+			" style=\"width:112px; margin:0;\"",
+			The_ClassInput[Gbl.Prefs.Theme]);
 	 for (Lan  = (Lan_Language_t) 1;
 	      Lan <= (Lan_Language_t) Lan_NUM_LANGUAGES;
 	      Lan++)
diff --git a/swad_mail.c b/swad_mail.c
index 6e916a37..d5affaa2 100644
--- a/swad_mail.c
+++ b/swad_mail.c
@@ -1051,6 +1051,7 @@ static void Mai_ShowFormChangeUsrEmail (bool ItsMe,
 				        bool IShouldConfirmEmail)
   {
    extern const char *The_ClassDat[The_NUM_THEMES];
+   extern const char *The_ClassInput[The_NUM_THEMES];
    extern const char *Txt_Before_going_to_any_other_option_you_must_fill_in_your_email_address;
    extern const char *Txt_Please_confirm_your_email_address;
    extern const char *Txt_Current_email;
@@ -1199,7 +1200,8 @@ static void Mai_ShowFormChangeUsrEmail (bool ItsMe,
 	       Usr_PutParamUsrCodEncrypted (UsrDat->EnUsrCod);
 	   }
 	    HTM_INPUT_EMAIL ("NewEmail",Cns_MAX_CHARS_EMAIL_ADDRESS,Gbl.Usrs.Me.UsrDat.Email,
-			     "id=\"NewEmail\" size=\"18\"");
+			     "id=\"NewEmail\" class=\"%s\" size=\"18\"",
+			     The_ClassInput[Gbl.Prefs.Theme]);
 	    HTM_BR ();
 	    Btn_PutCreateButtonInline (NumEmails ? Txt_Change_email :	// User already has an email address
 						   Txt_Save_changes);		// User has no email address yet
diff --git a/swad_message.c b/swad_message.c
index 16b9705f..8454ec95 100644
--- a/swad_message.c
+++ b/swad_message.c
@@ -219,6 +219,7 @@ static void Msg_PutFormMsgUsrs (struct Msg_Messages *Messages,
   {
    extern const char *Hlp_COMMUNICATION_Messages_write;
    extern const char *The_ClassFormInBox[The_NUM_THEMES];
+   extern const char *The_ClassInput[The_NUM_THEMES];
    extern const char *Txt_Reply_message;
    extern const char *Txt_New_message;
    extern const char *Txt_MSG_To;
@@ -370,7 +371,9 @@ static void Msg_PutFormMsgUsrs (struct Msg_Messages *Messages,
 	 Lay_HelpPlainEditor ();
 
 	 /***** Attached image (optional) *****/
-	 Med_PutMediaUploader (-1,"MSG_MED_INPUT");
+	 Med_PutMediaUploader (-1,Str_BuildString ("MSG_MED_INPUT %s",
+	                                           The_ClassInput[Gbl.Prefs.Theme]));
+	 Str_FreeStrings ();
 
 	 /***** Send button *****/
 	 Btn_PutCreateButton (Txt_Send_message);
diff --git a/swad_network.c b/swad_network.c
index 1dcebdc1..a0919707 100644
--- a/swad_network.c
+++ b/swad_network.c
@@ -193,6 +193,7 @@ void Net_ShowFormMyWebsAndSocialNets (void)
   {
    extern const char *Hlp_PROFILE_Webs;
    extern const char *The_ClassFormInBox[The_NUM_THEMES];
+   extern const char *The_ClassInput[The_NUM_THEMES];
    extern const char *Txt_Webs_social_networks;
    extern const char *Txt_Save_changes;
    Net_WebsAndSocialNetworks_t NumURL;
@@ -241,7 +242,8 @@ void Net_ShowFormMyWebsAndSocialNets (void)
 
 		     HTM_TD_Begin ("class=\"REC_C2_BOT LM\"");
 			HTM_INPUT_URL (StrName,URL,HTM_DONT_SUBMIT_ON_CHANGE,
-				       "id=\"%s\" class=\"REC_C2_BOT_INPUT\"",StrName);
+				       "id=\"%s\" class=\"REC_C2_BOT_INPUT %s\"",
+				       StrName,The_ClassInput[Gbl.Prefs.Theme]);
 		     HTM_TD_End ();
 
 		  HTM_TR_End ();
diff --git a/swad_nickname.c b/swad_nickname.c
index 2c348714..c1bfad87 100644
--- a/swad_nickname.c
+++ b/swad_nickname.c
@@ -151,6 +151,7 @@ static void Nck_ShowFormChangeUsrNickname (bool ItsMe,
   {
    extern const char *Hlp_PROFILE_Account;
    extern const char *The_ClassDat[The_NUM_THEMES];
+   extern const char *The_ClassInput[The_NUM_THEMES];
    extern const char *Txt_Nickname;
    extern const char *Txt_Before_going_to_any_other_option_you_must_fill_your_nickname;
    extern const char *Txt_Current_nickname;
@@ -307,7 +308,8 @@ static void Nck_ShowFormChangeUsrNickname (bool ItsMe,
 			       Gbl.Usrs.Me.UsrDat.Nickname);
 		     HTM_INPUT_TEXT ("NewNick",1 + Nck_MAX_CHARS_NICK_WITHOUT_ARROBA,
 				     NickWithArr,HTM_DONT_SUBMIT_ON_CHANGE,
-				     "id=\"NewNick\" size=\"18\"");
+				     "id=\"NewNick\" class=\"%s\" size=\"18\"",
+				     The_ClassInput[Gbl.Prefs.Theme]);
 		     HTM_BR ();
 		     Btn_PutCreateButtonInline (NumNicks ? Txt_Change_nickname :	// I already have a nickname
 							   Txt_Save_changes);	// I have no nickname yet);
diff --git a/swad_password.c b/swad_password.c
index 552c3243..c6c99de2 100644
--- a/swad_password.c
+++ b/swad_password.c
@@ -252,6 +252,7 @@ void Pwd_ShowFormSendNewPwd (void)
   {
    extern const char *Hlp_PROFILE_Password;
    extern const char *The_ClassFormInBox[The_NUM_THEMES];
+   extern const char *The_ClassInput[The_NUM_THEMES];
    extern const char *Txt_If_you_have_forgotten_your_password_;
    extern const char *Txt_Forgotten_password;
    extern const char *Txt_nick_email_or_ID;
@@ -273,7 +274,8 @@ void Pwd_ShowFormSendNewPwd (void)
 	    HTM_TxtColonNBSP (Txt_nick_email_or_ID);
 	    HTM_INPUT_TEXT ("UsrId",Cns_MAX_CHARS_EMAIL_ADDRESS,Gbl.Usrs.Me.UsrIdLogin,
 			    HTM_DONT_SUBMIT_ON_CHANGE,
-			    "size=\"8\" required=\"required\"");
+			    "size=\"8\" class=\"%s\" required=\"required\"",
+			    The_ClassInput[Gbl.Prefs.Theme]);
 	 HTM_LABEL_End ();
 
       /***** Send button and end box *****/
@@ -580,6 +582,7 @@ void Pwd_ShowFormChgMyPwd (void)
   {
    extern const char *Hlp_PROFILE_Password;
    extern const char *The_ClassFormInBox[The_NUM_THEMES];
+   extern const char *The_ClassInput[The_NUM_THEMES];
    extern const char *Txt_Before_going_to_any_other_option_you_must_create_your_password;
    extern const char *Txt_Your_password_is_not_secure_enough;
    extern const char *Txt_Your_password_must_be_at_least_X_characters_and_can_not_contain_spaces_;
@@ -628,7 +631,8 @@ void Pwd_ShowFormChgMyPwd (void)
 		  /* Data */
 		  HTM_TD_Begin ("class=\"REC_C2_BOT LM\"");
 		     HTM_INPUT_PASSWORD ("UsrPwd",NULL,"off",true,
-					 "id=\"UsrPwd\"");
+					 "id=\"UsrPwd\" class=\"%s\"",
+					 The_ClassInput[Gbl.Prefs.Theme]);
 		  HTM_TD_End ();
 
 	       HTM_TR_End ();
@@ -689,6 +693,7 @@ void Pwd_PutFormToGetNewPasswordOnce (void)
 void Pwd_PutFormToGetNewPasswordTwice (void)
   {
    extern const char *The_ClassFormInBox[The_NUM_THEMES];
+   extern const char *The_ClassInput[The_NUM_THEMES];
    extern const char *Txt_New_password;
    extern const char *Txt_Retype_new_password;
    extern const char *Txt_HELP_password;
@@ -702,7 +707,8 @@ void Pwd_PutFormToGetNewPasswordTwice (void)
       /* Data */
       HTM_TD_Begin ("class=\"REC_C2_BOT LM\"");
 	 HTM_INPUT_PASSWORD ("Paswd1",Txt_HELP_password,NULL,true,
-			     "id=\"Paswd1\"");
+			     "id=\"Paswd1\" class=\"%s\"",
+			     The_ClassInput[Gbl.Prefs.Theme]);
       HTM_TD_End ();
 
    HTM_TR_End ();
@@ -716,7 +722,8 @@ void Pwd_PutFormToGetNewPasswordTwice (void)
       /* Data */
       HTM_TD_Begin ("class=\"REC_C2_BOT LM\"");
 	 HTM_INPUT_PASSWORD ("Paswd2",Txt_HELP_password,NULL,true,
-			     "id=\"Paswd2\"");
+			     "id=\"Paswd2\" class=\"%s\"",
+			     The_ClassInput[Gbl.Prefs.Theme]);
       HTM_TD_End ();
 
    HTM_TR_End ();
diff --git a/swad_photo.c b/swad_photo.c
index 79418747..4c11a346 100644
--- a/swad_photo.c
+++ b/swad_photo.c
@@ -1777,6 +1777,7 @@ static void Pho_PutParamsDegPhoto (void *DegPhotos)
 static void Pho_PutSelectorForTypeOfAvg (const struct Pho_DegPhotos *DegPhotos)
   {
    extern const char *The_ClassFormInBox[The_NUM_THEMES];
+   extern const char *The_ClassInput[The_NUM_THEMES];
    extern const char *Txt_Average_type;
    extern const char *Txt_AVERAGE_PHOTO_TYPES[Pho_NUM_AVERAGE_PHOTO_TYPES];
    Pho_AvgPhotoTypeOfAverage_t TypeOfAvg;
@@ -1795,7 +1796,8 @@ static void Pho_PutSelectorForTypeOfAvg (const struct Pho_DegPhotos *DegPhotos)
 	    Pho_PutHiddenParamOrderDegrees (DegPhotos->HowOrderDegrees);
 	    Set_PutParamsPrefsAboutUsrList ();
 	    HTM_SELECT_Begin (HTM_SUBMIT_ON_CHANGE,
-			      "id=\"AvgType\" name=\"AvgType\"");
+			      "id=\"AvgType\" name=\"AvgType\" class=\"%s\"",
+			      The_ClassInput[Gbl.Prefs.Theme]);
 	       for (TypeOfAvg  = (Pho_AvgPhotoTypeOfAverage_t) 0;
 		    TypeOfAvg <= (Pho_AvgPhotoTypeOfAverage_t) (Pho_NUM_AVERAGE_PHOTO_TYPES - 1);
 		    TypeOfAvg++)
@@ -1841,6 +1843,7 @@ static Pho_AvgPhotoTypeOfAverage_t Pho_GetPhotoAvgTypeFromForm (void)
 static void Pho_PutSelectorForHowComputePhotoSize (const struct Pho_DegPhotos *DegPhotos)
   {
    extern const char *The_ClassFormInBox[The_NUM_THEMES];
+   extern const char *The_ClassInput[The_NUM_THEMES];
    extern const char *Txt_Size_of_photos;
    extern const char *Txt_STAT_DEGREE_PHOTO_SIZE[Pho_NUM_HOW_COMPUTE_PHOTO_SIZES];
    Pho_HowComputePhotoSize_t PhoSi;
@@ -1859,7 +1862,8 @@ static void Pho_PutSelectorForHowComputePhotoSize (const struct Pho_DegPhotos *D
 	    Pho_PutHiddenParamOrderDegrees (DegPhotos->HowOrderDegrees);
 	    Set_PutParamsPrefsAboutUsrList ();
 	    HTM_SELECT_Begin (HTM_SUBMIT_ON_CHANGE,
-			      "id=\"PhotoSize\" name=\"PhotoSize\"");
+			      "id=\"PhotoSize\" name=\"PhotoSize\" class=\"%s\"",
+			      The_ClassInput[Gbl.Prefs.Theme]);
 	       for (PhoSi  = (Pho_HowComputePhotoSize_t) 0;
 		    PhoSi <= (Pho_HowComputePhotoSize_t) (Pho_NUM_HOW_COMPUTE_PHOTO_SIZES - 1);
 		    PhoSi++)
@@ -1905,6 +1909,7 @@ static Pho_HowComputePhotoSize_t Pho_GetHowComputePhotoSizeFromForm (void)
 static void Pho_PutSelectorForHowOrderDegrees (const struct Pho_DegPhotos *DegPhotos)
   {
    extern const char *The_ClassFormInBox[The_NUM_THEMES];
+   extern const char *The_ClassInput[The_NUM_THEMES];
    extern const char *Txt_Sort_degrees_by;
    extern const char *Txt_STAT_DEGREE_PHOTO_ORDER[Pho_NUM_HOW_ORDER_DEGREES];
    Pho_HowOrderDegrees_t Order;
@@ -1923,7 +1928,8 @@ static void Pho_PutSelectorForHowOrderDegrees (const struct Pho_DegPhotos *DegPh
 	    Pho_PutHiddenParamPhotoSize (DegPhotos->HowComputePhotoSize);
 	    Set_PutParamsPrefsAboutUsrList ();
 	    HTM_SELECT_Begin (HTM_SUBMIT_ON_CHANGE,
-			      "id=\"Order\" name=\"Order\"");
+			      "id=\"Order\" name=\"Order\" class=\"%s\"",
+			      The_ClassInput[Gbl.Prefs.Theme]);
 	       for (Order  = (Pho_HowOrderDegrees_t) 0;
 		    Order <= (Pho_HowOrderDegrees_t) (Pho_NUM_HOW_ORDER_DEGREES - 1);
 		    Order++)
@@ -1987,6 +1993,7 @@ static void Pho_PutLinkToPrintViewOfDegreeStatsParams (void *DegPhotos)
 static void Pho_PutLinkToCalculateDegreeStats (const struct Pho_DegPhotos *DegPhotos)
   {
    extern const char *The_ClassFormLinkInBoxBold[The_NUM_THEMES];
+   extern const char *The_ClassInput[The_NUM_THEMES];
    extern const char *Txt_Calculate_average_photo_of_THE_DEGREE_X;
    extern const char *Txt_unknown_TIME;
    extern const char *Txt_time;
@@ -2024,7 +2031,8 @@ static void Pho_PutLinkToCalculateDegreeStats (const struct Pho_DegPhotos *DegPh
 
 	    /* Selector with all degrees with students */
 	    HTM_SELECT_Begin (HTM_DONT_SUBMIT_ON_CHANGE,
-			      "name=\"OthDegCod\"");
+			      "name=\"OthDegCod\" class=\"%s\"",
+			      The_ClassInput[Gbl.Prefs.Theme]);
 	       for (NumDeg = 0;
 		    NumDeg < Degs.Num;
 		    NumDeg++)
diff --git a/swad_project.c b/swad_project.c
index eb7dbbce..873fce33 100644
--- a/swad_project.c
+++ b/swad_project.c
@@ -731,6 +731,7 @@ static void Prj_ShowFormToFilterByWarning (const struct Prj_Projects *Projects)
 
 static void Prj_ShowFormToFilterByDpt (const struct Prj_Projects *Projects)
   {
+   extern const char *The_ClassInput[The_NUM_THEMES];
    extern const char *Txt_Any_department;
    struct Prj_Filter Filter;
 
@@ -750,10 +751,12 @@ static void Prj_ShowFormToFilterByDpt (const struct Prj_Projects *Projects)
 	 /***** Write selector with departments *****/
 	 Dpt_WriteSelectorDepartment (Gbl.Hierarchy.Ins.InsCod,		// Departments in current insitution
 				      Projects->Filter.DptCod,		// Selected department
-				      "TITLE_DESCRIPTION_WIDTH",	// Selector class
+				      Str_BuildString ("TITLE_DESCRIPTION_WIDTH %s",
+				                       The_ClassInput[Gbl.Prefs.Theme]),	// Selector class
 				      -1L,				// First option
 				      Txt_Any_department,		// Text when no department selected
 				      true);				// Submit on change
+	 Str_FreeStrings ();
 
       /***** End form *****/
       Frm_EndForm ();
@@ -3275,6 +3278,7 @@ static void Prj_PutFormProject (struct Prj_Projects *Projects,
    extern const char *Hlp_ASSESSMENT_Projects_edit_project;
    extern const char *The_ClassFormInBox[The_NUM_THEMES];
    extern const char *The_ClassDat[The_NUM_THEMES];
+   extern const char *The_ClassInput[The_NUM_THEMES];
    extern const char *Txt_New_project;
    extern const char *Txt_Edit_project;
    extern const char *Txt_Data;
@@ -3366,10 +3370,12 @@ static void Prj_PutFormProject (struct Prj_Projects *Projects,
 	    HTM_TD_Begin ("class=\"LT\"");
 	       Dpt_WriteSelectorDepartment (Gbl.Hierarchy.Ins.InsCod,	// Departments in current institution
 					    Prj->DptCod,		// Selected department
-					    "TITLE_DESCRIPTION_WIDTH",	// Selector class
+					    Str_BuildString ("TITLE_DESCRIPTION_WIDTH %s",
+				                             The_ClassInput[Gbl.Prefs.Theme]),	// Selector class
 					    0,				// First option
 					    Txt_Another_department,	// Text when no department selected
 					    false);			// Don't submit on change
+	       Str_FreeStrings ();
 	    HTM_TD_End ();
 
 	 HTM_TR_End ();
diff --git a/swad_question.c b/swad_question.c
index cf5fc5f3..c9f1bee2 100644
--- a/swad_question.c
+++ b/swad_question.c
@@ -642,6 +642,7 @@ void Qst_PutFormToEditQstMedia (const struct Med_Media *Media,int NumMedia,
                                 bool OptionsDisabled)
   {
    extern const char *The_ClassFormInBox[The_NUM_THEMES];
+   extern const char *The_ClassInput[The_NUM_THEMES];
    extern const char *Txt_No_image_video;
    extern const char *Txt_Current_image_video;
    extern const char *Txt_Change_image_video;
@@ -688,14 +689,20 @@ void Qst_PutFormToEditQstMedia (const struct Med_Media *Media,int NumMedia,
 			     OptionsDisabled ? " disabled=\"disabled\"" : "");
 	    HTM_TxtColonNBSP (Txt_Change_image_video);
 	 HTM_LABEL_End ();
-	 Med_PutMediaUploader (NumMedia,"TEST_MED_INPUT");
+	 Med_PutMediaUploader (NumMedia,Str_BuildString ("TEST_MED_INPUT %s",
+	                                                 The_ClassInput[Gbl.Prefs.Theme]));
+	 Str_FreeStrings ();
 
       /***** End container *****/
       HTM_DIV_End ();
      }
    else	// No current image
+     {
       /***** Attached media *****/
-      Med_PutMediaUploader (NumMedia,"TEST_MED_INPUT");
+      Med_PutMediaUploader (NumMedia,Str_BuildString ("TEST_MED_INPUT %s",
+	                                              The_ClassInput[Gbl.Prefs.Theme]));
+      Str_FreeStrings ();
+     }
   }
 
 /*****************************************************************************/
diff --git a/swad_record.c b/swad_record.c
index 2ad389b9..09344fd4 100644
--- a/swad_record.c
+++ b/swad_record.c
@@ -3038,6 +3038,7 @@ static void Rec_ShowRole (struct UsrData *UsrDat,
 static void Rec_ShowSurname1 (struct UsrData *UsrDat,bool PutForm)
   {
    extern const char *The_ClassDatStrong[The_NUM_THEMES];
+   extern const char *The_ClassInput[The_NUM_THEMES];
    extern const char *Txt_Surname_1;
 
    HTM_TR_Begin (NULL);
@@ -3057,8 +3058,9 @@ static void Rec_ShowSurname1 (struct UsrData *UsrDat,bool PutForm)
 	 if (PutForm)
 	    HTM_INPUT_TEXT ("Surname1",Usr_MAX_CHARS_FIRSTNAME_OR_SURNAME,UsrDat->Surname1,
 			    HTM_DONT_SUBMIT_ON_CHANGE,
-			    "id=\"Surname1\" class=\"REC_C2_BOT_INPUT\""
-			    " required=\"required\"");
+			    "id=\"Surname1\" class=\"REC_C2_BOT_INPUT %s\""
+			    " required=\"required\"",
+			    The_ClassInput[Gbl.Prefs.Theme]);
 	 else if (UsrDat->Surname1[0])
 	   {
 	    HTM_STRONG_Begin ();
@@ -3077,6 +3079,7 @@ static void Rec_ShowSurname1 (struct UsrData *UsrDat,bool PutForm)
 static void Rec_ShowSurname2 (struct UsrData *UsrDat,bool PutForm)
   {
    extern const char *The_ClassDatStrong[The_NUM_THEMES];
+   extern const char *The_ClassInput[The_NUM_THEMES];
    extern const char *Txt_Surname_2;
 
    HTM_TR_Begin (NULL);
@@ -3092,7 +3095,8 @@ static void Rec_ShowSurname2 (struct UsrData *UsrDat,bool PutForm)
 	    HTM_INPUT_TEXT ("Surname2",Usr_MAX_CHARS_FIRSTNAME_OR_SURNAME,
 			    UsrDat->Surname2,
 			    HTM_DONT_SUBMIT_ON_CHANGE,
-			    "id=\"Surname2\" class=\"REC_C2_BOT_INPUT\"");
+			    "id=\"Surname2\" class=\"REC_C2_BOT_INPUT %s\"",
+			    The_ClassInput[Gbl.Prefs.Theme]);
 	 else if (UsrDat->Surname2[0])
 	   {
 	    HTM_STRONG_Begin ();
@@ -3111,6 +3115,7 @@ static void Rec_ShowSurname2 (struct UsrData *UsrDat,bool PutForm)
 static void Rec_ShowFirstName (struct UsrData *UsrDat,bool PutForm)
   {
    extern const char *The_ClassDatStrong[The_NUM_THEMES];
+   extern const char *The_ClassInput[The_NUM_THEMES];
    extern const char *Txt_First_name;
 
    HTM_TR_Begin (NULL);
@@ -3132,8 +3137,9 @@ static void Rec_ShowFirstName (struct UsrData *UsrDat,bool PutForm)
 	    HTM_INPUT_TEXT ("FirstName",Usr_MAX_CHARS_FIRSTNAME_OR_SURNAME,
 			    UsrDat->FrstName,
 			    HTM_DONT_SUBMIT_ON_CHANGE,
-			    "id=\"FirstName\" class=\"REC_C2_BOT_INPUT\""
-			    " required=\"required\"");
+			    "id=\"FirstName\" class=\"REC_C2_BOT_INPUT %s\""
+			    " required=\"required\"",
+			    The_ClassInput[Gbl.Prefs.Theme]);
 	 else if (UsrDat->FrstName[0])
 	   {
 	    HTM_STRONG_Begin ();
@@ -3151,6 +3157,7 @@ static void Rec_ShowFirstName (struct UsrData *UsrDat,bool PutForm)
 
 static void Rec_ShowCountry (struct UsrData *UsrDat,bool PutForm)
   {
+   extern const char *The_ClassInput[The_NUM_THEMES];
    extern const char *Txt_Country;
    extern const char *Txt_Another_country;
    unsigned NumCty;
@@ -3175,7 +3182,9 @@ static void Rec_ShowCountry (struct UsrData *UsrDat,bool PutForm)
       HTM_TD_Begin ("colspan=\"2\" class=\"REC_C2_BOT LM\"");
 	 HTM_SELECT_Begin (HTM_DONT_SUBMIT_ON_CHANGE,
 			   "id=\"OthCtyCod\" name=\"OthCtyCod\""
-			   " class=\"REC_C2_BOT_INPUT\" required=\"required\"");
+			   " class=\"REC_C2_BOT_INPUT %s\""
+			   " required=\"required\"",
+			   The_ClassInput[Gbl.Prefs.Theme]);
 	    HTM_OPTION (HTM_Type_STRING,"",false,false,
 			"%s",Txt_Country);
 	    HTM_OPTION (HTM_Type_STRING,"0",UsrDat->CtyCod == 0,false,
@@ -3238,6 +3247,7 @@ static void Rec_ShowPhone (struct UsrData *UsrDat,bool ShowData,bool PutForm,
                            unsigned NumPhone)
   {
    extern const char *The_ClassDatStrong[The_NUM_THEMES];
+   extern const char *The_ClassInput[The_NUM_THEMES];
    extern const char *Txt_Phone;
    char *Name;
    char *Label;
@@ -3265,7 +3275,8 @@ static void Rec_ShowPhone (struct UsrData *UsrDat,bool ShowData,bool PutForm,
 	    if (PutForm)
 	       HTM_INPUT_TEL (Name,UsrDat->Phone[NumPhone],
 			      HTM_DONT_SUBMIT_ON_CHANGE,
-			      "id=\"%s\" class=\"REC_C2_BOT_INPUT\"",Name);
+			      "id=\"%s\" class=\"REC_C2_BOT_INPUT %s\"",
+			      Name,The_ClassInput[Gbl.Prefs.Theme]);
 	    else if (UsrDat->Phone[NumPhone][0])
 	      {
 	       HTM_A_Begin ("href=\"tel:%s\" class=\"%s\"",
@@ -3292,6 +3303,7 @@ static void Rec_ShowPhone (struct UsrData *UsrDat,bool ShowData,bool PutForm,
 static void Rec_ShowComments (struct UsrData *UsrDat,bool ShowData,bool PutForm)
   {
    extern const char *The_ClassDatStrong[The_NUM_THEMES];
+   extern const char *The_ClassInput[The_NUM_THEMES];
    extern const char *Txt_USER_comments;
 
    /***** Comments *****/
@@ -3309,7 +3321,8 @@ static void Rec_ShowComments (struct UsrData *UsrDat,bool ShowData,bool PutForm)
 	    if (PutForm)
 	      {
 	       HTM_TEXTAREA_Begin ("id=\"Comments\" name=\"Comments\""
-				   " rows=\"4\" class=\"REC_C2_BOT_INPUT\"");
+				   " rows=\"4\" class=\"REC_C2_BOT_INPUT %s\"",
+				   The_ClassInput[Gbl.Prefs.Theme]);
 		  HTM_Txt (UsrDat->Comments);
 	       HTM_TEXTAREA_End ();
 	      }
@@ -3741,6 +3754,7 @@ static void Rec_ShowFormMyInsCtrDpt (bool IAmATeacher)
   {
    extern const char *Hlp_PROFILE_Institution;
    extern const char *The_ClassFormInBox[The_NUM_THEMES];
+   extern const char *The_ClassInput[The_NUM_THEMES];
    extern const char *Txt_Institution_center_and_department;
    extern const char *Txt_Institution;
    extern const char *Txt_Country;
@@ -3784,7 +3798,8 @@ static void Rec_ShowFormMyInsCtrDpt (bool IAmATeacher)
 	       Frm_BeginFormAnchor (ActChgCtyMyIns,Rec_MY_INS_CTR_DPT_ID);
 		  HTM_SELECT_Begin (HTM_SUBMIT_ON_CHANGE,
 				    "id=\"InsCtyCod\" name=\"OthCtyCod\""
-				    " class=\"REC_C2_BOT_INPUT\"");
+				    " class=\"REC_C2_BOT_INPUT %s\"",
+				    The_ClassInput[Gbl.Prefs.Theme]);
 		     HTM_OPTION (HTM_Type_STRING,"-1",
 				 Gbl.Usrs.Me.UsrDat.InsCtyCod <= 0,true,
 				 NULL);
@@ -3821,7 +3836,8 @@ static void Rec_ShowFormMyInsCtrDpt (bool IAmATeacher)
 	       Frm_BeginFormAnchor (ActChgMyIns,Rec_MY_INS_CTR_DPT_ID);
 		  HTM_SELECT_Begin (HTM_SUBMIT_ON_CHANGE,
 				    "id=\"OthInsCod\" name=\"OthInsCod\""
-				    " class=\"REC_C2_BOT_INPUT\"");
+				    " class=\"REC_C2_BOT_INPUT %s\"",
+				    The_ClassInput[Gbl.Prefs.Theme]);
 		     HTM_OPTION (HTM_Type_STRING,"-1",
 				 Gbl.Usrs.Me.UsrDat.InsCod < 0,true,
 				 NULL);
@@ -3862,7 +3878,8 @@ static void Rec_ShowFormMyInsCtrDpt (bool IAmATeacher)
 		  Frm_BeginFormAnchor (ActChgMyCtr,Rec_MY_INS_CTR_DPT_ID);
 		     HTM_SELECT_Begin (HTM_SUBMIT_ON_CHANGE,
 				       "id=\"OthCtrCod\" name=\"OthCtrCod\""
-				       " class=\"REC_C2_BOT_INPUT\"");
+				       " class=\"REC_C2_BOT_INPUT %s\"",
+				       The_ClassInput[Gbl.Prefs.Theme]);
 			HTM_OPTION (HTM_Type_STRING,"-1",
 				    Gbl.Usrs.Me.UsrDat.Tch.CtrCod < 0,true,
 				    NULL);
@@ -3894,10 +3911,12 @@ static void Rec_ShowFormMyInsCtrDpt (bool IAmATeacher)
 		  Frm_BeginFormAnchor (ActChgMyDpt,Rec_MY_INS_CTR_DPT_ID);
 		     Dpt_WriteSelectorDepartment (Gbl.Usrs.Me.UsrDat.InsCod,		// Departments in my institution
 						  Gbl.Usrs.Me.UsrDat.Tch.DptCod,	// Selected department
-						  "REC_C2_BOT_INPUT",			// Selector class
+						  Str_BuildString ("REC_C2_BOT_INPUT %s",
+						                   The_ClassInput[Gbl.Prefs.Theme]),	// Selector class
 						  -1L,					// First option
 						  "",					// Text when no department selected
 						  true);				// Submit on change
+		     Str_FreeStrings ();
 		  Frm_EndForm ();
 	       HTM_TD_End ();
 
@@ -3914,7 +3933,8 @@ static void Rec_ShowFormMyInsCtrDpt (bool IAmATeacher)
 		  Frm_BeginFormAnchor (ActChgMyOff,Rec_MY_INS_CTR_DPT_ID);
 		     HTM_INPUT_TEXT ("Office",Usr_MAX_CHARS_ADDRESS,Gbl.Usrs.Me.UsrDat.Tch.Office,
 				     HTM_SUBMIT_ON_CHANGE,
-				     "id=\"Office\" class=\"REC_C2_BOT_INPUT\"");
+				     "id=\"Office\" class=\"REC_C2_BOT_INPUT %s\"",
+				     The_ClassInput[Gbl.Prefs.Theme]);
 		  Frm_EndForm ();
 	       HTM_TD_End ();
 
@@ -3931,7 +3951,8 @@ static void Rec_ShowFormMyInsCtrDpt (bool IAmATeacher)
 		  Frm_BeginFormAnchor (ActChgMyOffPho,Rec_MY_INS_CTR_DPT_ID);
 		     HTM_INPUT_TEL ("OfficePhone",Gbl.Usrs.Me.UsrDat.Tch.OfficePhone,
 				    HTM_SUBMIT_ON_CHANGE,
-				    "id=\"OfficePhone\" class=\"REC_C2_BOT_INPUT\"");
+				    "id=\"OfficePhone\" class=\"REC_C2_BOT_INPUT %s\"",
+				    The_ClassInput[Gbl.Prefs.Theme]);
 		  Frm_EndForm ();
 	       HTM_TD_End ();
 
diff --git a/swad_scope.c b/swad_scope.c
index ce4225d5..9ba58baf 100644
--- a/swad_scope.c
+++ b/swad_scope.c
@@ -46,6 +46,7 @@ extern struct Globals Gbl;
 
 void Sco_PutSelectorScope (const char *ParamName,HTM_SubmitOnChange_t SubmitOnChange)
   {
+   extern const char *The_ClassInput[The_NUM_THEMES];
    extern const char *Txt_System;
    extern const char *Txt_Country;
    extern const char *Txt_Institution;
@@ -57,7 +58,8 @@ void Sco_PutSelectorScope (const char *ParamName,HTM_SubmitOnChange_t SubmitOnCh
    bool WriteScope;
 
    HTM_SELECT_Begin (SubmitOnChange,
-		     "id=\"%s\" name=\"%s\"",ParamName,ParamName);
+		     "id=\"%s\" name=\"%s\" class=\"%s\"",
+		     ParamName,ParamName,The_ClassInput[Gbl.Prefs.Theme]);
 
       for (Scope  = (HieLvl_Level_t) 0;
 	   Scope <= (HieLvl_Level_t) (HieLvl_NUM_LEVELS - 1);
diff --git a/swad_search.c b/swad_search.c
index 82b40819..2ed981a4 100644
--- a/swad_search.c
+++ b/swad_search.c
@@ -100,6 +100,7 @@ static void Sch_PutFormToSearchWithWhatToSearchAndScope (Act_Action_t Action,Hie
   {
    extern const char *Hlp_START_Search;
    extern const char *The_ClassFormInBox[The_NUM_THEMES];
+   extern const char *The_ClassInput[The_NUM_THEMES];
    extern const char *Txt_Scope;
    extern const char *Txt_SEARCH_X_in_Y;
    extern const char *Txt_all;
@@ -169,7 +170,8 @@ static void Sch_PutFormToSearchWithWhatToSearchAndScope (Act_Action_t Action,Hie
 	    HTM_LABEL_Begin ("class=\"%s\"",The_ClassFormInBox[Gbl.Prefs.Theme]);
 	       HTM_TxtF (" %s&nbsp;",Txt_SEARCH_X_in_Y);
 	       HTM_SELECT_Begin (HTM_DONT_SUBMIT_ON_CHANGE,
-				 "name=\"WhatToSearch\" class=\"WHAT_TO_SEARCH\"");
+				 "name=\"WhatToSearch\" class=\"WHAT_TO_SEARCH %s\"",
+				 The_ClassInput[Gbl.Prefs.Theme]);
 		  for (WhatToSearch  = (Sch_WhatToSearch_t) 0;
 		       WhatToSearch <= (Sch_WhatToSearch_t) (Sch_NUM_WHAT_TO_SEARCH - 1);
 		       WhatToSearch++)
@@ -250,13 +252,16 @@ void Sch_PutFormToSearchInPageTopHeading (void)
 
 void Sch_PutInputStringToSearch (const char *IdInputText)
   {
+   extern const char *The_ClassInput[The_NUM_THEMES];
    extern const char *Txt_Search;
 
    /***** String to find *****/
    // Input field not required, because it can be hidden (display:none)
    HTM_INPUT_SEARCH ("Search",Sch_MAX_CHARS_STRING_TO_FIND,Gbl.Search.Str,
-	             "id=\"%s\" size=\"18\" placeholder=\"%s&hellip;\"",
-		     IdInputText,Txt_Search);
+	             "id=\"%s\" size=\"18\" class=\"%s\" placeholder=\"%s&hellip;\"",
+		     IdInputText,
+		     The_ClassInput[Gbl.Prefs.Theme],
+		     Txt_Search);
   }
 
 /*****************************************************************************/
diff --git a/swad_theme.c b/swad_theme.c
index 6a21aaed..dca09965 100644
--- a/swad_theme.c
+++ b/swad_theme.c
@@ -371,6 +371,17 @@ const char *The_ClassPrefOn[The_NUM_THEMES] =
    [The_THEME_DARK  ] = "PREF_ON_DARK",
   };
 
+const char *The_ClassInput[The_NUM_THEMES] =
+  {
+   [The_THEME_WHITE ] = "INPUT_WHITE",
+   [The_THEME_GREY  ] = "INPUT_GREY",
+   [The_THEME_PURPLE] = "INPUT_PURPLE",
+   [The_THEME_BLUE  ] = "INPUT_BLUE",
+   [The_THEME_YELLOW] = "INPUT_YELLOW",
+   [The_THEME_PINK  ] = "INPUT_PINK",
+   [The_THEME_DARK  ] = "INPUT_DARK",
+  };
+
 /*****************************************************************************/
 /****************************** Private prototypes ***************************/
 /*****************************************************************************/
diff --git a/swad_timeline_comment.c b/swad_timeline_comment.c
index 826ccd47..b9947dbd 100644
--- a/swad_timeline_comment.c
+++ b/swad_timeline_comment.c
@@ -212,6 +212,7 @@ static void Tml_Com_ShowAuthorPhoto (struct UsrData *UsrDat)
 static void Tml_Com_PutFormToWriteNewComm (const struct Tml_Timeline *Timeline,
 	                                   long NotCod)
   {
+   extern const char *The_ClassInput[The_NUM_THEMES];
    extern const char *Txt_New_TIMELINE_comment;
 
    /***** Begin container *****/
@@ -223,7 +224,9 @@ static void Tml_Com_PutFormToWriteNewComm (const struct Tml_Timeline *Timeline,
 
 	 /***** Textarea and button *****/
 	 Tml_Pst_PutTextarea (Txt_New_TIMELINE_comment,
-			     "Tml_COM_TEXTAREA Tml_COMM_WIDTH");
+			      Str_BuildString ("Tml_COM_TEXTAREA Tml_COMM_WIDTH %s",
+			                       The_ClassInput[Gbl.Prefs.Theme]));
+	 Str_FreeStrings ();
 
       /***** End form *****/
       Tml_Frm_EndForm ();
diff --git a/swad_timeline_post.c b/swad_timeline_post.c
index 9a1131cc..e53f5851 100644
--- a/swad_timeline_post.c
+++ b/swad_timeline_post.c
@@ -166,6 +166,7 @@ void Tml_Pst_PutPhotoAndFormToWriteNewPost (struct Tml_Timeline *Timeline)
 static void Tml_Pst_PutFormToWriteNewPost (struct Tml_Timeline *Timeline)
   {
    extern const char *The_ClassDatStrong[The_NUM_THEMES];
+   extern const char *The_ClassInput[The_NUM_THEMES];
    extern const char *Txt_New_TIMELINE_post;
 
    /***** Begin container *****/
@@ -184,7 +185,9 @@ static void Tml_Pst_PutFormToWriteNewPost (struct Tml_Timeline *Timeline)
          /* Form with textarea */
 	 Tml_Frm_BeginForm (Timeline,Tml_Frm_RECEIVE_POST);
 	    Tml_Pst_PutTextarea (Txt_New_TIMELINE_post,
-				"Tml_PST_TEXTAREA Tml_RIGHT_WIDTH");
+				 Str_BuildString ("Tml_COM_TEXTAREA Tml_COMM_WIDTH %s",
+			                          The_ClassInput[Gbl.Prefs.Theme]));
+	    Str_FreeStrings ();
 	 Tml_Frm_EndForm ();
 
       /* End container */
@@ -200,6 +203,7 @@ static void Tml_Pst_PutFormToWriteNewPost (struct Tml_Timeline *Timeline)
 
 void Tml_Pst_PutTextarea (const char *Placeholder,const char *ClassTextArea)
   {
+   extern const char *The_ClassInput[The_NUM_THEMES];
    extern const char *Txt_Post;
    char IdDivImgButton[Frm_MAX_BYTES_ID + 1];
 
@@ -222,7 +226,9 @@ void Tml_Pst_PutTextarea (const char *Placeholder,const char *ClassTextArea)
       Lay_HelpPlainEditor ();
 
       /***** Attached image (optional) *****/
-      Med_PutMediaUploader (-1,"Tml_MED_INPUT_WIDTH");
+      Med_PutMediaUploader (-1,Str_BuildString ("Tml_MED_INPUT_WIDTH %s",
+                                                The_ClassInput[Gbl.Prefs.Theme]));
+      Str_FreeStrings ();
 
       /***** Submit button *****/
       HTM_BUTTON_SUBMIT_Begin (NULL,"BT_SUBMIT_INLINE BT_CREATE",NULL);
diff --git a/swad_user.c b/swad_user.c
index 0d6f48dd..7ba6aee8 100644
--- a/swad_user.c
+++ b/swad_user.c
@@ -1129,6 +1129,7 @@ void Usr_PutLinkToLogin (void)
 void Usr_WriteFormLogin (Act_Action_t NextAction,void (*FuncParams) (void))
   {
    extern const char *Hlp_PROFILE_LogIn;
+   extern const char *The_ClassInput[The_NUM_THEMES];
    extern const char *Txt_Log_in;
    extern const char *Txt_User[Usr_NUM_SEXS];
    extern const char *Txt_nick_email_or_ID;
@@ -1162,8 +1163,10 @@ void Usr_WriteFormLogin (Act_Action_t NextAction,void (*FuncParams) (void))
 	       HTM_INPUT_TEXT ("UsrId",Cns_MAX_CHARS_EMAIL_ADDRESS,Gbl.Usrs.Me.UsrIdLogin,
 			       HTM_DONT_SUBMIT_ON_CHANGE,
 			       "id=\"UsrId\" size=\"18\" placeholder=\"%s\""
-			       " autofocus=\"autofocus\" required=\"required\"",
-			       Txt_nick_email_or_ID);
+			       " class=\"%s\" autofocus=\"autofocus\""
+			       " required=\"required\"",
+			       Txt_nick_email_or_ID,
+			       The_ClassInput[Gbl.Prefs.Theme]);
 	    HTM_DIV_End ();
 
 	    /***** User's password *****/
@@ -1172,7 +1175,8 @@ void Usr_WriteFormLogin (Act_Action_t NextAction,void (*FuncParams) (void))
 		  Ico_PutIcon ("key.svg",Txt_Password,"CONTEXT_ICO_16x16");
 	       HTM_LABEL_End ();
 	       HTM_INPUT_PASSWORD ("UsrPwd",Txt_password,NULL,false,
-				   "id=\"UsrPwd\"");
+				   "id=\"UsrPwd\" class=\"%s\"",
+				   The_ClassInput[Gbl.Prefs.Theme]);
 	    HTM_DIV_End ();
 
 	 /***** End table, send button and end box *****/
@@ -1338,6 +1342,7 @@ void Usr_PutFormLogIn (void)
 void Usr_WriteLoggedUsrHead (void)
   {
    extern const char *The_ClassUsr[The_NUM_THEMES];
+   extern const char *The_ClassInput[The_NUM_THEMES];
    extern const char *Txt_Role;
    extern const char *Txt_ROLES_SINGUL_Abc[Rol_NUM_ROLES][Usr_NUM_SEXS];
    static const char *ClassPhoto[Pho_NUM_SHAPES] =
@@ -1367,7 +1372,10 @@ void Usr_WriteLoggedUsrHead (void)
 	 HTM_Colon ();
 	}
       else
-	 Rol_PutFormToChangeMyRole ("SEL_ROLE");
+	{
+	 Rol_PutFormToChangeMyRole (Str_BuildString ("SEL_ROLE %s",The_ClassInput[Gbl.Prefs.Theme]));
+	 Str_FreeStrings ();
+	}
       HTM_NBSP ();
 
       /***** Show my photo *****/
@@ -2033,6 +2041,7 @@ void Usr_ShowFormsLogoutAndRole (void)
    extern const char *The_ClassFormInBox[The_NUM_THEMES];
    extern const char *The_ClassDat[The_NUM_THEMES];
    extern const char *The_ClassDatStrong[The_NUM_THEMES];
+   extern const char *The_ClassInput[The_NUM_THEMES];
    extern const char *Txt_Session;
    extern const char *Txt_Role;
    extern const char *Txt_You_are_now_LOGGED_IN_as_X;
@@ -2066,7 +2075,7 @@ void Usr_ShowFormsLogoutAndRole (void)
 	{
 	 HTM_LABEL_Begin ("class=\"%s\"",The_ClassFormInBox[Gbl.Prefs.Theme]);
 	    HTM_TxtColonNBSP (Txt_Role);
-	    Rol_PutFormToChangeMyRole (NULL);
+	    Rol_PutFormToChangeMyRole (The_ClassInput[Gbl.Prefs.Theme]);
 	 HTM_LABEL_End ();
 	}
 
@@ -6246,6 +6255,7 @@ static void Usr_DrawClassPhoto (Usr_ClassPhotoType_t ClassPhotoType,
 void Usr_PutSelectorNumColsClassPhoto (void)
   {
    extern const char *The_ClassFormInBox[The_NUM_THEMES];
+   extern const char *The_ClassInput[The_NUM_THEMES];
    extern const char *Txt_columns;
    unsigned Cols;
 
@@ -6254,7 +6264,8 @@ void Usr_PutSelectorNumColsClassPhoto (void)
 
       /***** Begin selector *****/
       HTM_SELECT_Begin (HTM_SUBMIT_ON_CHANGE,
-			"name=\"ColsClassPhoto\"");
+			"name=\"ColsClassPhoto\" class=\"%s\"",
+			The_ClassInput[Gbl.Prefs.Theme]);
 
 	 /***** Put a row in selector for every number of columns *****/
 	 for (Cols  = 1;