diff --git a/swad_changelog.h b/swad_changelog.h
index 1aca09ef2..0a162aa92 100644
--- a/swad_changelog.h
+++ b/swad_changelog.h
@@ -103,11 +103,12 @@
 /****************************** Public constants *****************************/
 /*****************************************************************************/
 
-#define Log_PLATFORM_VERSION	"SWAD 14.124.7 (2015/08/24)"
+#define Log_PLATFORM_VERSION	"SWAD 14.124.8 (2015/09/02)"
 
 // Number of lines (includes comments but not blank lines) has been got with the following command:
 // nl swad*.c swad*.h css/swad*.css py/swad*.py js/swad*.js soap/swad*.h sql/swad*.sql | tail -1
 /*
+        Version 14.124.8: Sep 02, 2015	Changes in styles. (184635 lines)
         Version 14.124.7: Aug 24, 2015	Changes in styles. (184648 lines)
         Version 14.124.6: Aug 24, 2015	Changes in styles. (184735 lines)
         Version 14.124.5: Aug 06, 2015	Changes in CSS of forms. (184760 lines)
diff --git a/swad_survey.c b/swad_survey.c
index d4662845f..c5d0a70ed 100644
--- a/swad_survey.c
+++ b/swad_survey.c
@@ -216,7 +216,7 @@ static void Svy_ListAllSurveys (struct SurveyQuestion *SvyQst)
 	Order <= Svy_ORDER_BY_END_DATE;
 	Order++)
      {
-      fprintf (Gbl.F.Out,"<th class=\"TIT_TBL\" style=\"text-align:center;\">");
+      fprintf (Gbl.F.Out,"<th class=\"TIT_TBL CENTER_MIDDLE\">");
       Act_FormStart (ActSeeAllSvy);
       Grp_PutParamWhichGrps ();
       Pag_PutHiddenParamPagNum (Gbl.Pag.CurrentPage);
@@ -231,10 +231,10 @@ static void Svy_ListAllSurveys (struct SurveyQuestion *SvyQst)
       Act_FormEnd ();
       fprintf (Gbl.F.Out,"</th>");
      }
-   fprintf (Gbl.F.Out,"<th class=\"TIT_TBL\" style=\"text-align:center;\">"
+   fprintf (Gbl.F.Out,"<th class=\"TIT_TBL CENTER_MIDDLE\">"
 		      "%s"
 		      "</th>"
-		      "<th class=\"TIT_TBL\" style=\"text-align:center;\">"
+		      "<th class=\"TIT_TBL CENTER_MIDDLE\">"
 		      "%s"
 		      "</th>"
 		      "</tr>",
@@ -345,16 +345,15 @@ static void Svy_ShowOneSurvey (long SvyCod,struct SurveyQuestion *SvyQst,bool Sh
 
    /***** Start date/time *****/
    fprintf (Gbl.F.Out,"<tr>"
-                      "<td class=\"%s\""
-                      " style=\"text-align:left; vertical-align:top;",
+                      "<td class=\"%s LEFT_TOP\"",
             Svy.Status.Visible ? (Svy.Status.Open ? "DATE_GREEN" :
         	                                    "DATE_RED") :
                                  (Svy.Status.Open ? "DATE_GREEN_LIGHT" :
                                                     "DATE_RED_LIGHT"));
    if (!ShowOnlyThisSvyComplete)
-      fprintf (Gbl.F.Out," background-color:%s;",
+      fprintf (Gbl.F.Out," style=\"background-color:%s;\"",
                Gbl.ColorRows[Gbl.RowEvenOdd]);
-   fprintf (Gbl.F.Out,"\">"
+   fprintf (Gbl.F.Out,">"
 	              "%02u/%02u/%02u<br />"
 	              "%02u:%02u h"
 	              "</td>",
@@ -365,15 +364,15 @@ static void Svy_ShowOneSurvey (long SvyCod,struct SurveyQuestion *SvyQst,bool Sh
 	    Svy.DateTimes[Svy_START_TIME].Time.Minute);
 
    /***** End date/time *****/
-   fprintf (Gbl.F.Out,"<td class=\"%s\" style=\"text-align:left; vertical-align:top;",
+   fprintf (Gbl.F.Out,"<td class=\"%s LEFT_TOP\"",
             Svy.Status.Visible ? (Svy.Status.Open ? "DATE_GREEN" :
         	                                    "DATE_RED") :
                                  (Svy.Status.Open ? "DATE_GREEN_LIGHT" :
                                                     "DATE_RED_LIGHT"));
    if (!ShowOnlyThisSvyComplete)
-      fprintf (Gbl.F.Out," background-color:%s;",
+      fprintf (Gbl.F.Out," style=\"background-color:%s;\"",
                Gbl.ColorRows[Gbl.RowEvenOdd]);
-   fprintf (Gbl.F.Out,"\">"
+   fprintf (Gbl.F.Out,">"
 	              "%02u/%02u/%02u<br />"
 	              "%02u:%02u h"
 	              "</td>",
@@ -384,11 +383,11 @@ static void Svy_ShowOneSurvey (long SvyCod,struct SurveyQuestion *SvyQst,bool Sh
 	    Svy.DateTimes[Svy_END_TIME  ].Time.Minute);
 
    /***** Survey title *****/
-   fprintf (Gbl.F.Out,"<td style=\"text-align:left; vertical-align:top;");
+   fprintf (Gbl.F.Out,"<td class=\"LEFT_TOP\"");
    if (!ShowOnlyThisSvyComplete)
-      fprintf (Gbl.F.Out," background-color:%s;",
+      fprintf (Gbl.F.Out," style=\"background-color:%s;\"",
                Gbl.ColorRows[Gbl.RowEvenOdd]);
-   fprintf (Gbl.F.Out,"\">");
+   fprintf (Gbl.F.Out,">");
 
    /* Put form to view survey */
    Act_FormStart (ActSeeOneSvy);
@@ -414,24 +413,22 @@ static void Svy_ShowOneSurvey (long SvyCod,struct SurveyQuestion *SvyQst,bool Sh
             Svy.NumUsrs);
 
    /***** Status of the survey *****/
-   fprintf (Gbl.F.Out,"<td rowspan=\"2\""
-	              " style=\"text-align:left; vertical-align:top;");
+   fprintf (Gbl.F.Out,"<td rowspan=\"2\" class=\"LEFT_TOP\"");
    if (!ShowOnlyThisSvyComplete)
-      fprintf (Gbl.F.Out," background-color:%s;",
+      fprintf (Gbl.F.Out," style=\"background-color:%s;\"",
                Gbl.ColorRows[Gbl.RowEvenOdd]);
-   fprintf (Gbl.F.Out,"\">");
+   fprintf (Gbl.F.Out,">");
    Svy_WriteStatus (&Svy);
    fprintf (Gbl.F.Out,"</td>"
 	              "</tr>");
 
    /***** Write second row of data of this survey *****/
    fprintf (Gbl.F.Out,"<tr>"
-	              "<td colspan=\"2\""
-	              " style=\"text-align:left; vertical-align:top;");
+	              "<td colspan=\"2\" class=\"LEFT_TOP\"");
    if (!ShowOnlyThisSvyComplete)
-      fprintf (Gbl.F.Out," background-color:%s;",
+      fprintf (Gbl.F.Out," style=\"background-color:%s;\"",
                Gbl.ColorRows[Gbl.RowEvenOdd]);
-   fprintf (Gbl.F.Out,"\">");
+   fprintf (Gbl.F.Out,">");
 
    /* Author of the survey */
    Svy_WriteAuthor (&Svy);
@@ -1589,7 +1586,7 @@ void Svy_RequestCreatOrEditSvy (void)
                       "<td class=\"%s RIGHT_MIDDLE\">"
                       "%s:"
                       "</td>"
-                      "<td style=\"text-align:left; vertical-align:middle;\">",
+                      "<td class=\"LEFT_MIDDLE\">",
             The_ClassForm[Gbl.Prefs.Theme],
             Txt_Scope);
    if (!Svy_SetDefaultAndAllowedForEdition ())
@@ -1604,7 +1601,7 @@ void Svy_RequestCreatOrEditSvy (void)
 	              "<td class=\"%s RIGHT_MIDDLE\">"
 	              "%s:"
 	              "</td>"
-                      "<td style=\"text-align:left;\">"
+                      "<td class=\"LEFT_MIDDLE\">"
                       "<input type=\"text\" name=\"Title\" size=\"45\" maxlength=\"%u\" value=\"%s\" />"
                       "</td>"
                       "</tr>",
@@ -1621,10 +1618,10 @@ void Svy_RequestCreatOrEditSvy (void)
 	                 "<td class=\"%s RIGHT_MIDDLE\">"
 	                 "%s:"
 	                 "</td>"
-                         "<td style=\"text-align:left;\">"
+                         "<td class=\"LEFT_MIDDLE\">"
                          "<table class=\"CELLS_PAD_2\">"
                          "<tr>"
-                         "<td style=\"text-align:left;\">",
+                         "<td class=\"LEFT_MIDDLE\">",
                The_ClassForm[Gbl.Prefs.Theme],
                Dates[StartOrEndTime]);
       Dat_WriteFormDate (Gbl.Now.Date.Year-1,
@@ -1635,7 +1632,7 @@ void Svy_RequestCreatOrEditSvy (void)
                          &(Svy.DateTimes[StartOrEndTime].Date),
                          false,false);
       fprintf (Gbl.F.Out,"</td>"
-                         "<td style=\"text-align:left; vertical-align:top;\">");
+                         "<td class=\"LEFT_TOP\">");
       Dat_WriteFormHourMinute (NameSelectHour  [StartOrEndTime],
                                NameSelectMinute[StartOrEndTime],
 		               &(Svy.DateTimes[StartOrEndTime].Time),
@@ -1652,7 +1649,7 @@ void Svy_RequestCreatOrEditSvy (void)
 	              "<td class=\"%s RIGHT_TOP\">"
 	              "%s:"
 	              "</td>"
-                      "<td style=\"text-align:left; vertical-align:top;\">"
+                      "<td class=\"LEFT_TOP\">"
                       "<textarea name=\"Txt\" cols=\"60\" rows=\"10\">",
             The_ClassForm[Gbl.Prefs.Theme],
             Txt_Description);
@@ -1667,8 +1664,7 @@ void Svy_RequestCreatOrEditSvy (void)
 	              "<td class=\"%s RIGHT_TOP\">"
 	              "%s:"
 	              "</td>"
-                      "<td class=\"DAT\""
-                      " style=\"text-align:left; vertical-align:middle;\">",
+                      "<td class=\"DAT LEFT_MIDDLE\">",
             The_ClassForm[Gbl.Prefs.Theme],
             Txt_Users);
    Rol_WriteSelectorRoles (Svy.Roles);
@@ -1755,16 +1751,16 @@ static void Svy_ShowLstGrpsToEditSurvey (long SvyCod)
 	                 "<td class=\"%s RIGHT_TOP\">"
 	                 "%s:"
 	                 "</td>"
-                         "<td style=\"text-align:left; vertical-align:top;\">",
+                         "<td class=\"LEFT_TOP\">",
                The_ClassForm[Gbl.Prefs.Theme],
                Txt_Groups);
       Lay_StartRoundFrameTable ("95%",0,NULL);
 
       /***** First row: checkbox to select the whole course *****/
       fprintf (Gbl.F.Out,"<tr>"
-	                 "<td colspan=\"7\" class=\"DAT\""
-	                 " style=\"text-align:left; vertical-align:middle;\">"
-                         "<input type=\"checkbox\" id=\"WholeCrs\" name=\"WholeCrs\" value=\"Y\"");
+	                 "<td colspan=\"7\" class=\"DAT LEFT_MIDDLE\">"
+                         "<input type=\"checkbox\""
+                         " id=\"WholeCrs\" name=\"WholeCrs\" value=\"Y\"");
       if (!Svy_CheckIfSvyIsAssociatedToGrps (SvyCod))
          fprintf (Gbl.F.Out," checked=\"checked\"");
       fprintf (Gbl.F.Out," onclick=\"uncheckChildren(this,'GrpCods')\" />%s %s</td>"
@@ -2445,7 +2441,7 @@ static void Svy_ShowFormEditOneQst (long SvyCod,struct SurveyQuestion *SvyQst,ch
 	              "<td class=\"%s RIGHT_TOP\">"
 	              "%s:"
 	              "</td>"
-                      "<td style=\"text-align:left; vertical-align:top;\">"
+                      "<td class=\"LEFT_TOP\">"
                       "<textarea name=\"Txt\" cols=\"60\" rows=\"4\">"
 	              "%s"
                       "</textarea>"
@@ -2481,7 +2477,7 @@ static void Svy_ShowFormEditOneQst (long SvyCod,struct SurveyQuestion *SvyQst,ch
    /* Unique or multiple choice answers */
    fprintf (Gbl.F.Out,"<tr>"
 	              "<td></td>"
-                      "<td style=\"text-align:left; vertical-align:top;\">"
+                      "<td class=\"LEFT_TOP\">"
                       "<table class=\"CELLS_PAD_2\">");
    for (NumAns = 0;
 	NumAns < Svy_MAX_ANSWERS_PER_QUESTION;
@@ -2495,7 +2491,7 @@ static void Svy_ShowFormEditOneQst (long SvyCod,struct SurveyQuestion *SvyQst,ch
                The_ClassForm[Gbl.Prefs.Theme],NumAns+1);
 
       /* Answer text */
-      fprintf (Gbl.F.Out,"<td style=\"text-align:right; vertical-align:top;\">"
+      fprintf (Gbl.F.Out,"<td class=\"RIGHT_TOP\">"
                          "<textarea name=\"AnsStr%u\" cols=\"50\" rows=\"1\">",
                NumAns);
       if (SvyQst->AnsChoice[NumAns].Text)
@@ -2959,16 +2955,13 @@ static void Svy_ListSvyQuestions (struct Survey *Svy,struct SurveyQuestion *SvyQ
       fprintf (Gbl.F.Out,"<tr>");
       if (Svy->Status.ICanEdit)
          fprintf (Gbl.F.Out,"<td colspan=\"2\"></td>");
-      fprintf (Gbl.F.Out,"<td class=\"TIT_TBL\""
-	                 " style=\"text-align:center; vertical-align:top;\">"
+      fprintf (Gbl.F.Out,"<td class=\"TIT_TBL CENTER_TOP\">"
 	                 "%s"
 	                 "</td>"
-                         "<td class=\"TIT_TBL\""
-                         " style=\"text-align:center; vertical-align:top;\">"
+                         "<td class=\"TIT_TBL CENTER_TOP\">"
                          "%s"
                          "</td>"
-                         "<td class=\"TIT_TBL\""
-                         " style=\"text-align:left; vertical-align:top;\">"
+                         "<td class=\"TIT_TBL LEFT_TOP\">"
                          "%s"
                          "</td>"
                          "</tr>",
@@ -3023,16 +3016,16 @@ static void Svy_ListSvyQuestions (struct Survey *Svy,struct SurveyQuestion *SvyQ
          /* Write index of question inside survey (row[1]) */
          if (sscanf (row[1],"%u",&(SvyQst->QstInd)) != 1)
             Lay_ShowErrorAndExit ("Error: wrong question index.");
-         fprintf (Gbl.F.Out,"<td class=\"DAT_SMALL\" style=\"text-align:center;"
-                            " vertical-align:top; background-color:%s;\">"
+         fprintf (Gbl.F.Out,"<td class=\"DAT_SMALL CENTER_TOP\""
+                            " style=\"background-color:%s;\">"
                             "%u"
                             "</td>",
                   Gbl.ColorRows[Gbl.RowEvenOdd],SvyQst->QstInd+1);
 
          /* Write the question type (row[2]) */
          SvyQst->AnswerType = Svy_ConvertFromStrAnsTypDBToAnsTyp (row[2]);
-         fprintf (Gbl.F.Out,"<td class=\"DAT_SMALL\" style=\"text-align:center;"
-                            " vertical-align:top; background-color:%s;\">"
+         fprintf (Gbl.F.Out,"<td class=\"DAT_SMALL CENTER_TOP\""
+                            " style=\"background-color:%s;\">"
                             "%s",
 	          Gbl.ColorRows[Gbl.RowEvenOdd],
                   Txt_SURVEY_STR_ANSWER_TYPES[SvyQst->AnswerType]);
@@ -3048,7 +3041,7 @@ static void Svy_ListSvyQuestions (struct Survey *Svy,struct SurveyQuestion *SvyQ
      }
    else	// This survey has no questions
       fprintf (Gbl.F.Out,"<tr>"
-	                 "<td class=\"ASG_GRP\" style=\"text-align:center;\">"
+	                 "<td class=\"ASG_GRP CENTER_TOP\">"
 	                 "(%s)"
 	                 "</td>"
 	                 "</tr>",
@@ -3121,8 +3114,8 @@ static void Svy_WriteQstStem (const char *Stem,const char *TextStyle)
                      HeadingRigorousHTML,LengthHeading,false);
 
    /* Write the stem */
-   fprintf (Gbl.F.Out,"<td class=\"%s\" style=\"text-align:left;"
-	              " vertical-align:top; background-color:%s;\">"
+   fprintf (Gbl.F.Out,"<td class=\"%s LEFT_TOP\""
+	              " style=\"background-color:%s;\">"
                       "<div style=\"text-align:justify;\">"
                       "<tt>%s</tt>"
                       "</div>",
@@ -3173,8 +3166,7 @@ static void Svy_WriteAnswersOfAQst (struct Survey *Svy,struct SurveyQuestion *Sv
       if (Svy->Status.ICanAnswer)
         {
          /* Write selector to choice this answer */
-         fprintf (Gbl.F.Out,"<td style=\"text-align:left;"
-                            " vertical-align:top;\">");
+         fprintf (Gbl.F.Out,"<td class=\"LEFT_TOP\">");
          fprintf (Gbl.F.Out,"<input type=\"");
          if (SvyQst->AnswerType == Svy_ANS_UNIQUE_CHOICE)
             fprintf (Gbl.F.Out,"radio\" onclick=\"selectUnselectRadio(this,this.form.Ans%010u,%u)\"",
@@ -3186,15 +3178,13 @@ static void Svy_WriteAnswersOfAQst (struct Survey *Svy,struct SurveyQuestion *Sv
         }
 
       /* Write the number of option */
-      fprintf (Gbl.F.Out,"<td class=\"DAT\" style=\"width:40px;"
-	                 " text-align:left; vertical-align:top;\">"
+      fprintf (Gbl.F.Out,"<td class=\"DAT LEFT_TOP\" style=\"width:40px;\">"
 	                 "%u)"
 	                 "</td>",
                NumAns + 1);
 
       /* Write the text of the answer */
-      fprintf (Gbl.F.Out,"<td class=\"TEST_EDI\""
-	                 " style=\"text-align:left; vertical-align:top;\">"
+      fprintf (Gbl.F.Out,"<td class=\"TEST_EDI LEFT_TOP\">"
 	                 "<tt>%s</tt>"
 	                 "</td>",
                Answer);
@@ -3236,8 +3226,7 @@ static void Svy_DrawBarNumUsrs (unsigned NumUsrs,unsigned MaxUsrs)
                Txt_of_PART_OF_A_TOTAL,MaxUsrs);
 
    /***** Draw bar with a with proportional to the number of clicks *****/
-   fprintf (Gbl.F.Out,"<td class=\"DAT\" style=\"width:%upx;"
-	              " text-align:left; vertical-align:top;\">",
+   fprintf (Gbl.F.Out,"<td class=\"DAT LEFT_TOP\" style=\"width:%upx;\">",
             Svy_MAX_BAR_WIDTH + 100);
    if (NumUsrs && MaxUsrs)
       BarWidth = (unsigned) ((((float) NumUsrs * (float) Svy_MAX_BAR_WIDTH) /
diff --git a/swad_syllabus.c b/swad_syllabus.c
index 33d6c2749..64ac1ec58 100644
--- a/swad_syllabus.c
+++ b/swad_syllabus.c
@@ -143,8 +143,8 @@ void Syl_PutFormWhichSyllabus (void)
 	WhichSyllabus < For_NUM_WHICH_FORUMS;
 	WhichSyllabus++)
      {
-      fprintf (Gbl.F.Out,"<li class=\"DAT\""
-	                 " style=\"display:inline; vertical-align:middle;\">"
+      fprintf (Gbl.F.Out,"<li class=\"DAT LEFT_MIDDLE\""
+	                 " style=\"display:inline;\">"
                          "<input type=\"radio\" name=\"WhichSyllabus\" value=\"%u\"",
                (unsigned) WhichSyllabus);
       if (WhichSyllabus == Gbl.CurrentCrs.Syllabus.WhichSyllabus)
@@ -220,8 +220,7 @@ void Syl_EditSyllabus (void)
       Lay_EndRoundFrameTable ();
 
       if (!Gbl.CurrentCrs.Syllabus.EditionIsActive)
-         fprintf (Gbl.F.Out,"<div class=\"DAT_SMALL\""
-                            " style=\"text-align:center;\">"
+         fprintf (Gbl.F.Out,"<div class=\"DAT_SMALL CENTER_MIDDLE\">"
                             "<br />%s</div>",
                   Txt_This_syllabus_has_been_edited_by_teachers_of_the_course_);
      }
@@ -692,7 +691,8 @@ static void Syl_ShowRowSyllabus (Inf_InfoType_t InfoType,unsigned NumItem,int Le
                   Level - 1,Gbl.ColorRows[Gbl.RowEvenOdd]);
 
       /***** Code of the item *****/
-      fprintf (Gbl.F.Out,"<td class=\"%s\" style=\"width:%dpx; text-align:right; vertical-align:top; background-color:%s;\">",
+      fprintf (Gbl.F.Out,"<td class=\"%s RIGHT_TOP\""
+	                 " style=\"width:%dpx; background-color:%s;\">",
                StyleSyllabus[Level],
                Level * Syl_WIDTH_NUM_SYLLABUS,Gbl.ColorRows[Gbl.RowEvenOdd]);
       if (Level == 1)
@@ -700,8 +700,8 @@ static void Syl_ShowRowSyllabus (Inf_InfoType_t InfoType,unsigned NumItem,int Le
       fprintf (Gbl.F.Out,"%s&nbsp;</td>",StrItemCod);
 
       /***** Text of the item *****/
-      fprintf (Gbl.F.Out,"<td colspan=\"%d\" class=\"%s\""
-	                 " style=\"text-align:left; vertical-align:top; background-color:%s;\">"
+      fprintf (Gbl.F.Out,"<td colspan=\"%d\" class=\"%s LEFT_TOP\""
+	                 " style=\"background-color:%s;\">"
                          "%s"
                          "</td>",
                LstItemsSyllabus.NumLevels - Level + 1,
@@ -837,8 +837,7 @@ static void Syl_WriteSyllabusIntoHTMLTmpFile (Inf_InfoType_t InfoType,FILE *File
 		  LstItemsSyllabus.Lst[NumItem].Level - 1);
 
       /***** Code of the item *****/
-      fprintf (FileHTMLTmp,"<td class=\"%s\" style=\"width:%dpx;"
-	                   " text-align:right; vertical-align:top;\">",
+      fprintf (FileHTMLTmp,"<td class=\"%s RIGHT_TOP\" style=\"width:%dpx;\">",
 	       StyleSyllabus[LstItemsSyllabus.Lst[NumItem].Level],
 	       LstItemsSyllabus.Lst[NumItem].Level * Syl_WIDTH_NUM_SYLLABUS);
       if (LstItemsSyllabus.Lst[NumItem].Level == 1)
@@ -849,8 +848,7 @@ static void Syl_WriteSyllabusIntoHTMLTmpFile (Inf_InfoType_t InfoType,FILE *File
       fprintf (FileHTMLTmp,"&nbsp;</td>");
 
       /***** Text of the item *****/
-      fprintf (FileHTMLTmp,"<td colspan=\"%d\" class=\"%s\""
-	                   " style=\"text-align:left; vertical-align:top;\">"
+      fprintf (FileHTMLTmp,"<td colspan=\"%d\" class=\"%s LEFT_TOP\">"
 			    "%s"
 			    "</td>",
 	       LstItemsSyllabus.NumLevels - LstItemsSyllabus.Lst[NumItem].Level + 1,
@@ -890,8 +888,8 @@ static void Syl_PutFormItemSyllabus (Inf_InfoType_t InfoType,bool NewItem,unsign
                Level * Syl_WIDTH_NUM_SYLLABUS,BgColor);
    else
      {
-      fprintf (Gbl.F.Out,"<td class=\"%s\" style=\"width:%dpx; text-align:left;"
-	                 " vertical-align:middle; background-color:%s;\">",
+      fprintf (Gbl.F.Out,"<td class=\"%s LEFT_MIDDLE\""
+	                 " style=\"width:%dpx; background-color:%s;\">",
                StyleSyllabus[Level],
                Level * Syl_WIDTH_NUM_SYLLABUS,BgColor);
       if (Level == 1)
@@ -901,8 +899,8 @@ static void Syl_PutFormItemSyllabus (Inf_InfoType_t InfoType,bool NewItem,unsign
      }
 
    /***** Text of the item *****/
-   fprintf (Gbl.F.Out,"<td colspan=\"%d\" style=\"text-align:left;"
-	              " vertical-align:middle; background-color:%s;\">",
+   fprintf (Gbl.F.Out,"<td colspan=\"%d LEFT_MIDDLE\""
+	              " style=\"background-color:%s;\">",
             LstItemsSyllabus.NumLevels - Level + 1,BgColor);
    Act_FormStart (NewItem ? (InfoType == Inf_LECTURES ? ActInsIteSylLec :
 	                                                ActInsIteSylPra) :
diff --git a/swad_tab.c b/swad_tab.c
index 37ec7018b..7087f1981 100644
--- a/swad_tab.c
+++ b/swad_tab.c
@@ -90,8 +90,8 @@ void Tab_DrawTabs (void)
       else if (Gbl.Prefs.SideCols != Lay_HIDE_BOTH_COLUMNS)	// 10 or 01: only one side column visible, left or right
 	 ColspanCentralPart = 2;
      }
-   fprintf (Gbl.F.Out,"<td colspan=\"%u\" style=\"height:56px;"
-	              " text-align:center; vertical-align:top;"
+   fprintf (Gbl.F.Out,"<td colspan=\"%u\" class=\"CENTER_TOP\""
+	              " style=\"height:56px;"
 		      " background-image:url('%s/head_base_background_1x56.gif');"
 		      " background-repeat:repeat-x;\">"
 		      "<div id=\"tabs_container\">",
@@ -224,8 +224,7 @@ void Tab_DrawTabsMobile (void)
 	    fprintf (Gbl.F.Out,"<tr>");
 
 	 /* Icon at top and text at bottom */
-	 fprintf (Gbl.F.Out,"<td style=\"width:25%%; text-align:center;"
-	                    " vertical-align:top;\">");
+	 fprintf (Gbl.F.Out,"<td class=\"CENTER_TOP\" style=\"width:25%%;\">");
 	 if (ICanViewTab)
 	   {
 	    fprintf (Gbl.F.Out,"<div class=\"ICON_HIGHLIGHT\">");