diff --git a/css/swad19.70.css b/css/swad19.70.css
index ea048f4eb..92d6e7c86 100644
--- a/css/swad19.70.css
+++ b/css/swad19.70.css
@@ -1520,6 +1520,7 @@ a:hover						/* Default ==> underlined */
 	border:none;
 	padding:0;
 	font:inherit;
+	text-align:left;
 	}
 .BT_LINK:hover
 	{
diff --git a/swad_banner.c b/swad_banner.c
index 239aa6692..5ef8a0b92 100644
--- a/swad_banner.c
+++ b/swad_banner.c
@@ -1026,12 +1026,6 @@ void Ban_WriteMenuWithBanners (void)
       Par_PutHiddenParamString (NULL,"URL",Gbl.Banners.Lst[NumBan].WWW);
       HTM_INPUT_IMAGE (Cfg_URL_BANNER_PUBLIC,Gbl.Banners.Lst[NumBan].Img,
 		       Gbl.Banners.Lst[NumBan].FullName,"BANNER");
-      /*
-      HTM_BUTTON_Begin (Gbl.Banners.Lst[NumBan].FullName,"BT_LINK BANNER",NULL);
-      HTM_IMG (Cfg_URL_BANNER_PUBLIC,Gbl.Banners.Lst[NumBan].Img,Gbl.Banners.Lst[NumBan].FullName,
-	       "class=\"BANNER\"");
-      HTM_BUTTON_End ();
-      */
       Frm_EndForm ();
       HTM_DIV_End ();
      }
diff --git a/swad_centre.c b/swad_centre.c
index c10cd04c9..a565ec74b 100644
--- a/swad_centre.c
+++ b/swad_centre.c
@@ -210,7 +210,7 @@ void Ctr_SeeCtrWithPendingDegs (void)
 
          HTM_TD_Begin ("class=\"LM %s\"",BgColor);
          Ctr_DrawCentreLogoAndNameWithLink (&Ctr,ActSeeDeg,
-                                            "DAT_NOBR","CM");
+                                            "BT_LINK DAT_NOBR","CM");
          HTM_TD_End ();
 
          /* Number of pending degrees (row[1]) */
@@ -249,14 +249,14 @@ void Ctr_DrawCentreLogoAndNameWithLink (struct Centre *Ctr,Act_Action_t Action,
    snprintf (Gbl.Title,sizeof (Gbl.Title),
 	     Txt_Go_to_X,
 	     Ctr->FullName);
-   Frm_LinkFormSubmit (Gbl.Title,ClassLink,NULL);
+   HTM_BUTTON_Begin (Gbl.Title,ClassLink,NULL);
 
    /***** Centre logo and name *****/
    Log_DrawLogo (Hie_CTR,Ctr->CtrCod,Ctr->ShrtName,16,ClassLogo,true);
    HTM_TxtF (" %s",Ctr->FullName);
 
    /***** End link *****/
-   Frm_LinkFormEnd ();
+   HTM_BUTTON_End ();
 
    /***** End form *****/
    Frm_EndForm ();
@@ -645,9 +645,9 @@ static void Ctr_Configuration (bool PrintView)
       snprintf (Gbl.Title,sizeof (Gbl.Title),
 		Txt_Degrees_of_CENTRE_X,
 		Gbl.Hierarchy.Ctr.ShrtName);
-      Frm_LinkFormSubmit (Gbl.Title,"DAT",NULL);
+      HTM_BUTTON_Begin (Gbl.Title,"BT_LINK DAT",NULL);
       HTM_Unsigned (Deg_GetNumDegsInCtr (Gbl.Hierarchy.Ctr.CtrCod));
-      Frm_LinkFormEnd ();
+      HTM_BUTTON_End ();
       Frm_EndForm ();
       HTM_TD_End ();
 
@@ -886,12 +886,12 @@ static void Ctr_ListOneCentreForSeeing (struct Centre *Ctr,unsigned NumCtr)
    if (Ctr->Status & Ctr_STATUS_BIT_PENDING)
      {
       TxtClassNormal = "DAT_LIGHT";
-      TxtClassStrong = "DAT_LIGHT";
+      TxtClassStrong = "BT_LINK DAT_LIGHT";
      }
    else
      {
       TxtClassNormal = "DAT";
-      TxtClassStrong = "DAT_N";
+      TxtClassStrong = "BT_LINK DAT_N";
      }
    BgColor = (Ctr->CtrCod == Gbl.Hierarchy.Ctr.CtrCod) ? "LIGHT_BLUE" :
                                                          Gbl.ColorRows[Gbl.RowEvenOdd];
@@ -2586,7 +2586,7 @@ static void Ctr_PutHeadCentresForSeeing (bool OrderSelectable)
 	{
 	 Frm_StartForm (ActSeeCtr);
 	 Par_PutHiddenParamUnsigned (NULL,"Order",(unsigned) Order);
-	 Frm_LinkFormSubmit (Txt_CENTRES_HELP_ORDER[Order],"TIT_TBL",NULL);
+	 HTM_BUTTON_Begin (Txt_CENTRES_HELP_ORDER[Order],"BT_LINK TIT_TBL",NULL);
 	 if (Order == Gbl.Hierarchy.Ins.Ctrs.SelectedOrder)
 	    HTM_U_Begin ();
 	}
@@ -2595,7 +2595,7 @@ static void Ctr_PutHeadCentresForSeeing (bool OrderSelectable)
 	{
 	 if (Order == Gbl.Hierarchy.Ins.Ctrs.SelectedOrder)
 	    HTM_U_End ();
-	 Frm_LinkFormEnd ();
+	 HTM_BUTTON_End ();
 	 Frm_EndForm ();
 	}
       HTM_TH_End ();
diff --git a/swad_changelog.h b/swad_changelog.h
index 1d48f62a1..1b96ebb3d 100644
--- a/swad_changelog.h
+++ b/swad_changelog.h
@@ -488,14 +488,15 @@ enscript -2 --landscape --color --file-align=2 --highlight --line-numbers -o - *
 En OpenSWAD:
 ps2pdf source.ps destination.pdf
 */
-#define Log_PLATFORM_VERSION	"SWAD 19.70.3 (2019-11-17)"
+#define Log_PLATFORM_VERSION	"SWAD 19.70.4 (2019-11-17)"
 #define CSS_FILE		"swad19.70.css"
 #define JS_FILE			"swad19.70.js"
 /*
 // TODO: Hacer un nuevo rol en los TFG: tutor externo (profesor de áreas no vinculadas con el centro, profesionales de empresas, etc.)
 // TODO: Impedir la creación y edición de proyectos si no son editables.
 
-	Version 19.70.3:  Nov 17, 2019	Converting links to buttons. (? lines)
+	Version 19.70.4:  Nov 17, 2019	Converting links to buttons. (? lines)
+	Version 19.70.3:  Nov 17, 2019	Converting links to buttons. (247067 lines)
 	Version 19.70.2:  Nov 17, 2019	Converting links to buttons. (247062 lines)
 	Version 19.70.1:  Nov 17, 2019	Converting links to buttons.
 					Fixed bug in agenda. (247061 lines)
diff --git a/swad_degree.c b/swad_degree.c
index b64e2e275..302c97904 100644
--- a/swad_degree.c
+++ b/swad_degree.c
@@ -2495,7 +2495,7 @@ void Hie_GetAndWriteInsCtrDegAdminBy (long UsrCod,unsigned ColSpan)
 
 		  /* Write centre logo and name */
 		  Ctr_DrawCentreLogoAndNameWithLink (&Ctr,ActSeeCtrInf,
-						     "DAT_SMALL_NOBR","LT");
+						     "BT_LINK DAT_SMALL_NOBR","LT");
 		 }
 	       break;
 	    case Hie_DEG:	// Degree
diff --git a/swad_statistic.c b/swad_statistic.c
index 1c233e2a0..86583ff1f 100644
--- a/swad_statistic.c
+++ b/swad_statistic.c
@@ -3594,7 +3594,7 @@ static void Sta_WriteCentre (long CtrCod)
 
       /***** Form to go to centre *****/
       Ctr_DrawCentreLogoAndNameWithLink (&Ctr,ActSeeCtrInf,
-                                         "LOG","CT");
+                                         "BT_LINK LOG","CT");
      }
    else			// Hit with no centre selected
      {