Adding the exit.png icon + fixing "hidden" close button see #4640

main/css/base.css

@@ -57,6 +57,11 @@ legend {
     margin:0px;
 }
 
+.subnav {
+    font-size: 11px;
+    font-weight: bold;         
+}
+
 /* To fix the increase/decrease buttons */
 label, input, button, select, textarea, p {
     font-size: inherit;
@@ -3597,4 +3602,8 @@ a.forum_group_link {
 .new_actions .nav-tabs > li > a, .new_actions .nav-pills > li > a {
     padding-left: 10px;
     padding-right: 10px;
+}
+
+.subnav .nav > li > .logout {
+    padding:7px;
 }

main/css/base_chamilo.css

@@ -1833,11 +1833,6 @@ span.form_required  {
     padding:20px;
 }
 
-.subnav {
-    font-size: 11px;
-    font-weight: bold;         
-}
-
 /* Scroll effect */
 
 .subnav-fixed .nav {

main/inc/lib/banner.lib.php

@@ -447,7 +447,7 @@ function return_menu() {
                                     </li>
                                 </ul>';
                 $menu .= '</li>';
-                $menu .= '<li><a class="close" title="'.get_lang('Logout').'" href="'.$logout_link.'">&times;</a></li>'; 
+                $menu .= '<li><a class="logout" title="'.get_lang('Logout').'" href="'.$logout_link.'">'.Display::return_icon('exit.png', get_lang('Logout'), array(), ICON_SIZE_SMALL).'</a></li>'; 
             $menu .= '</ul>';    
         }