diff --git a/css/swad18.77.css b/css/swad18.77.css
index aa1ff0e55..b4e3b4353 100644
--- a/css/swad18.77.css
+++ b/css/swad18.77.css
@@ -2716,19 +2716,10 @@ a:hover img.CENTRE_PHOTO_SHOW
 /*********************** Media (image/video) uploading ***********************/
 .MED_UPL_CON	/* Upload container */
 	{
+	text-align:center;
 	vertical-align:top;
 	margin-bottom:10px;
 	}
-.MED_UPL_ICO_CON	/* Upload icon container */
-	{
-	display:inline-block;
-	}
-.MED_UPL_ICO	/* Upload icon */
-	{
-	height:20px;
-	margin:5px 20px;
-	vertical-align:middle;
-	}
 	
 .MED_PLAY
 	{
@@ -2884,7 +2875,7 @@ a:hover img.CENTRE_PHOTO_SHOW
 	.TL_WIDTH					{width:316px;}	/* 536-220 */
 	.TL_RIGHT_WIDTH				{width:260px;}	/* 480-220 */
 	.TL_RIGHT_AUTHOR_WIDTH		{width:100px;}	/* 320-220 */
-	.TL_POST_IMG_WIDTH			{width:220px;}	/* 440-220 */
+	.TL_POST_MED_WIDTH			{width:220px;}	/* 440-220 */
 	.TL_COMMENT_WIDTH			{width:220px;}	/* 440-220 */
 	.TL_COMMENT_AUTHOR_WIDTH	{width: 60px;}	/* 280-220 */
 	}
@@ -2893,7 +2884,7 @@ a:hover img.CENTRE_PHOTO_SHOW
 	.TL_WIDTH					{width:536px;}
 	.TL_RIGHT_WIDTH				{width:480px;}
 	.TL_RIGHT_AUTHOR_WIDTH		{width:320px;}
-	.TL_POST_IMG_WIDTH			{width:440px;}
+	.TL_POST_MED_WIDTH			{width:440px;}
 	.TL_COMMENT_WIDTH			{width:440px;}
 	.TL_COMMENT_AUTHOR_WIDTH	{width:280px;}
 	}
@@ -2970,7 +2961,7 @@ a:hover img.CENTRE_PHOTO_SHOW
 	margin:0;
 	resize:none;
 	}
-.TL_POST_IMG_TIT_URL
+.TL_POST_MED_INPUT
 	{
 	box-sizing:border-box;
 	}
@@ -3138,7 +3129,7 @@ a:hover img.CENTRE_PHOTO_SHOW
 	width:100%;
 	border-radius:4px;
 	}
-.FOR_IMG_TIT_URL
+.FOR_MED_INPUT
 	{
 	box-sizing:border-box;
 	width:480px;
@@ -3164,7 +3155,7 @@ a:hover img.CENTRE_PHOTO_SHOW
 	width:100%;
 	border-radius:4px;
 	}
-.MSG_IMG_TIT_URL
+.MSG_MED_INPUT
 	{
 	box-sizing:border-box;
 	width:480px;
diff --git a/js/swad18.77.js b/js/swad18.77.js
index a6f782a23..2c5d008a4 100644
--- a/js/swad18.77.js
+++ b/js/swad18.77.js
@@ -786,8 +786,8 @@ function mediaClickOnActivateUpload (id) {
 	    par_emb.disabled = true;		// Disable embed
 	    par_upl.disabled = false;		// Enable upload
 
-		ico_upl.style.opacity = '1';	// Highlighted upload icon
-		ico_emb.style.opacity = '0.5';	// Normal embed icon
+		ico_upl.className = 'PREF_ON';	// Highlighted upload icon
+		ico_emb.className = 'PREF_OFF';	// Normal embed icon
 
 		fil.style.display = '';			// Show file input
 		fil.disabled = false;			// Enable file input
@@ -817,8 +817,8 @@ function mediaClickOnActivateEmbed (id) {
 	    par_upl.disabled = true;		// Disable upload
 	    par_emb.disabled = false;		// Enable embed
 
-		ico_emb.style.opacity = '1';	// Highlighted embed icon
-		ico_upl.style.opacity = '0.5';	// Normal upload icon
+		ico_emb.className = 'PREF_ON';	// Highlighted embed icon
+		ico_upl.className = 'PREF_OFF';	// Normal upload icon
 
 		fil.style.display  = 'none';	// Hide file input
 		fil.disabled = true;			// Disable file input
@@ -845,8 +845,8 @@ function mediaDisableUploadAndEmbed (id) {
     par_upl.disabled = true;		// Disable upload
     par_emb.disabled = true;		// Disable embed
 
-	ico_upl.style.opacity = '0.5';	// Normal upload icon
-	ico_emb.style.opacity = '0.5';	// Normal embed icon
+	ico_upl.className = 'PREF_OFF';	// Normal upload icon
+	ico_emb.className = 'PREF_OFF';	// Normal embed icon
 
 	fil.style.display = 'none';		// Hide file input
 	fil.disabled = true;			// Disable file input
diff --git a/swad_changelog.h b/swad_changelog.h
index d0d77f7ae..1f85b16f8 100644
--- a/swad_changelog.h
+++ b/swad_changelog.h
@@ -431,6 +431,8 @@ Lo de mutear anuncios, en principio prefiero hacer una opci
 
 // TODO: Los usuarios que no tienes permiso para ver su perfil público, se debería mostrar algo, una mínima ficha sin tinmeline o algo así
 
+// TODO: Allow timeline posting only for users belonging to courses or admins to avoid user who create accounts only to post
+
 /*****************************************************************************/
 /****************************** Public constants *****************************/
 /*****************************************************************************/
@@ -468,6 +470,7 @@ que el usuario podr
 
 TODO: Fix edition of media in test edition
 
+	Version 18.77.4:  Mar 16, 2019 	Changes in form to upload media. (240256 lines)
 	Version 18.77.3:  Mar 16, 2019 	Embedded YouTube videos. Not finished. (240252 lines)
 	Version 18.77.2:  Mar 14, 2019 	Embedded YouTube videos. Not finished. (240267 lines)
 	Version 18.77.1:  Mar 14, 2019 	Embedded YouTube videos. Not finished. (240217 lines)
diff --git a/swad_forum.c b/swad_forum.c
index 1abfc1a78..9c0635a5b 100644
--- a/swad_forum.c
+++ b/swad_forum.c
@@ -4008,7 +4008,7 @@ static void For_WriteFormForumPst (bool IsReply,const char *Subject)
    Lay_HelpPlainEditor ();
 
    /***** Attached image (optional) *****/
-   Med_PutMediaUploader (-1,"FOR_IMG_TIT_URL");
+   Med_PutMediaUploader (-1,"FOR_MED_INPUT");
 
    /***** Send button *****/
    Btn_PutCreateButton (Txt_Send);
diff --git a/swad_media.c b/swad_media.c
index bca0d84bf..d198b9795 100644
--- a/swad_media.c
+++ b/swad_media.c
@@ -293,17 +293,21 @@ void Med_PutMediaUploader (int NumMediaInForm,const char *ClassInput)
    Frm_SetUniqueId (Id);
 
    /***** Start container *****/
-   fprintf (Gbl.F.Out,"<div class=\"MED_UPL_CON\">");	// container
+   fprintf (Gbl.F.Out,"<div class=\"MED_UPL_CON\">");		// container
 
    /***** Action to perform on media *****/
    Par_PutHiddenParamUnsigned (ParamUploadMedia.Action,(unsigned) Med_ACTION_NEW_MEDIA);
 
+   /***** Start icons *****/
+   fprintf (Gbl.F.Out,"<div class=\"PREF_CONTAINERS\">"		// icons containers
+		      "<div class=\"PREF_CONTAINER\">");	// icons container
+
    /***** Upload icon *****/
    fprintf (Gbl.F.Out,"<div id=\"%s_ico_upl\""			// <id>_ico_upl
-		      " class=\"MED_UPL_ICO_CON\">"
+		      " class=\"PREF_OFF\">"
 		      "<img src=\"%s/file-image.svg\""
 	              " alt=\"%s\" title=\"%s\""
-	              " class=\"MED_UPL_ICO ICO_HIGHLIGHT\""
+	              " class=\"ICO_HIGHLIGHT ICOx20\""
 	              " onclick=\"mediaClickOnActivateUpload('%s');\" />"
 	              "</div>",					// <id>_ico_upl
             Id,
@@ -321,10 +325,10 @@ void Med_PutMediaUploader (int NumMediaInForm,const char *ClassInput)
 
    /***** Embed icon *****/
    fprintf (Gbl.F.Out,"<div id=\"%s_ico_emb\""			// <id>_ico_emb
-		      " class=\"MED_UPL_ICO_CON\">"
+		      " class=\"PREF_OFF\">"
 		      "<img src=\"%s/youtube-brands.svg\""
 	              " alt=\"%s\" title=\"%s\""
-	              " class=\"MED_UPL_ICO ICO_HIGHLIGHT\""
+	              " class=\"ICO_HIGHLIGHT ICOx20\""
 	              " onclick=\"mediaClickOnActivateEmbed('%s');\" />"
 	              "</div>",					// <id>_ico_emb
             Id,
@@ -332,6 +336,14 @@ void Med_PutMediaUploader (int NumMediaInForm,const char *ClassInput)
             "YouTube","YouTube",
             Id);
 
+   /***** End icons *****/
+   fprintf (Gbl.F.Out,"</div>"					// icons container
+		      "</div>");				// icons containers
+
+   /***** Start input fields *****/
+   fprintf (Gbl.F.Out,"<div class=\"%s\">",			// input fields
+	    ClassInput);
+
    /***** Form type *****/
    fprintf (Gbl.F.Out,"<input type=\"hidden\""
 		      " id=\"%s_par_emb\""			// <id>_par_emb
@@ -369,8 +381,11 @@ void Med_PutMediaUploader (int NumMediaInForm,const char *ClassInput)
             ParamUploadMedia.Title,Txt_Title_attribution,
             ClassInput,Med_MAX_CHARS_TITLE);
 
+   /***** End input fields *****/
+   fprintf (Gbl.F.Out,"</div>");				// input fields
+
    /***** End container *****/
-   fprintf (Gbl.F.Out,"</div>");			// container
+   fprintf (Gbl.F.Out,"</div>");				// container
   }
 
 /*****************************************************************************/
diff --git a/swad_message.c b/swad_message.c
index ef5114172..29658cedb 100644
--- a/swad_message.c
+++ b/swad_message.c
@@ -324,7 +324,7 @@ static void Msg_PutFormMsgUsrs (char Content[Cns_MAX_BYTES_LONG_TEXT + 1])
    Lay_HelpPlainEditor ();
 
    /***** Attached image (optional) *****/
-   Med_PutMediaUploader (-1,"MSG_IMG_TIT_URL");
+   Med_PutMediaUploader (-1,"MSG_MED_INPUT");
 
    /***** Send button *****/
    Btn_PutCreateButton (Txt_Send_message);
diff --git a/swad_test.c b/swad_test.c
index 424006f76..8588b8204 100644
--- a/swad_test.c
+++ b/swad_test.c
@@ -158,7 +158,7 @@ static void Tst_ShowTestResultAfterAssess (long TstCod,unsigned *NumQstsNotBlank
 static void Tst_PutFormToEditQstMedia (struct Media *Media,int NumMediaInForm,
                                        const char *ClassContainer,
                                        const char *ClassMedia,
-                                       const char *ClassMediaTitURL,
+                                       const char *ClassMediaInput,
                                        bool OptionsDisabled);
 static void Tst_UpdateScoreQst (long QstCod,float ScoreThisQst,bool AnswerIsNotBlank);
 static void Tst_UpdateMyNumAccessTst (unsigned NumAccessesTst);
@@ -1111,7 +1111,7 @@ void Tst_WriteQstStem (const char *Stem,const char *ClassStem)
 static void Tst_PutFormToEditQstMedia (struct Media *Media,int NumMediaInForm,
                                        const char *ClassContainer,
                                        const char *ClassMedia,
-                                       const char *ClassMediaTitURL,
+                                       const char *ClassMediaInput,
                                        bool OptionsDisabled)
   {
    extern const char *The_ClassFormInBox[The_NUM_THEMES];
@@ -1185,7 +1185,7 @@ static void Tst_PutFormToEditQstMedia (struct Media *Media,int NumMediaInForm,
 			 " placeholder=\"%s (%s)\""
 			 " class=\"%s\" maxlength=\"%u\" value=\"%s\">",
 	       ParamUploadMedia.Title,Txt_Title_attribution,Txt_optional,
-	       ClassMediaTitURL,Med_MAX_CHARS_TITLE,
+	       ClassMediaInput,Med_MAX_CHARS_TITLE,
 	       Media->Title ? Media->Title :
 		              "");
 
@@ -1195,7 +1195,7 @@ static void Tst_PutFormToEditQstMedia (struct Media *Media,int NumMediaInForm,
 			 " placeholder=\"%s (%s)\""
 			 " class=\"%s\" maxlength=\"%u\" value=\"%s\">",
 	       ParamUploadMedia.URL,Txt_Link,Txt_optional,
-	       ClassMediaTitURL,Cns_MAX_CHARS_WWW,
+	       ClassMediaInput,Cns_MAX_CHARS_WWW,
 	       Media->URL ? Media->URL :
 		            "");
 
@@ -1204,7 +1204,7 @@ static void Tst_PutFormToEditQstMedia (struct Media *Media,int NumMediaInForm,
      }
    else	// No current image
       /***** Attached image (optional) *****/
-      Med_PutMediaUploader (NumMediaInForm,ClassMediaTitURL);
+      Med_PutMediaUploader (NumMediaInForm,ClassMediaInput);
   }
 
 /*****************************************************************************/
diff --git a/swad_timeline.c b/swad_timeline.c
index 48acc108a..842bb5b26 100644
--- a/swad_timeline.c
+++ b/swad_timeline.c
@@ -183,7 +183,7 @@ static void TL_PublishNoteInTimeline (struct TL_Publication *SocPub);
 
 static void TL_PutFormToWriteNewPost (void);
 static void TL_PutTextarea (const char *Placeholder,
-                            const char *ClassTextArea,const char *ClassImgTit);
+                            const char *ClassTextArea,const char *ClassMediaInput);
 
 static long TL_ReceivePost (void);
 
@@ -2355,8 +2355,8 @@ static void TL_PutFormToWriteNewPost (void)
 
    /* Textarea and button */
    TL_PutTextarea (Txt_New_TIMELINE_post,
-                    "TL_POST_TEXTAREA TL_RIGHT_WIDTH",
-		    "TL_POST_IMG_TIT_URL TL_POST_IMG_WIDTH");
+                   "TL_POST_TEXTAREA TL_RIGHT_WIDTH",
+		   "TL_POST_MED_INPUT TL_POST_MED_WIDTH");
 
    /* End form */
    Frm_EndForm ();
@@ -2374,7 +2374,7 @@ static void TL_PutFormToWriteNewPost (void)
 /*****************************************************************************/
 
 static void TL_PutTextarea (const char *Placeholder,
-                            const char *ClassTextArea,const char *ClassImgTit)
+                            const char *ClassTextArea,const char *ClassMediaInput)
   {
    extern const char *Txt_Post;
    char IdDivImgButton[Frm_MAX_BYTES_ID + 1];
@@ -2386,7 +2386,7 @@ static void TL_PutTextarea (const char *Placeholder,
    fprintf (Gbl.F.Out,"<textarea name=\"Content\" rows=\"1\" maxlength=\"%u\""
                       " placeholder=\"%s&hellip;\""
 	              " class=\"%s\""
-	              " onfocus=\"expandTextarea(this,'%s','5');\">"
+	              " onfocus=\"expandTextarea(this,'%s','6');\">"
 		      "</textarea>",
             TL_MAX_CHARS_IN_POST,
             Placeholder,ClassTextArea,
@@ -2400,7 +2400,7 @@ static void TL_PutTextarea (const char *Placeholder,
    Lay_HelpPlainEditor ();
 
    /***** Attached image (optional) *****/
-   Med_PutMediaUploader (-1,ClassImgTit);
+   Med_PutMediaUploader (-1,ClassMediaInput);
 
    /***** Submit button *****/
    fprintf (Gbl.F.Out,"<button type=\"submit\""