Minor CSS corrections

main/css/base.css

@@ -2476,10 +2476,14 @@ div.admin_section h4 {
     width:100%;
     margin:0;
 }
-#time_container {
-    padding:5px;
+
+.time_container_warning {
     background-color:#FFD700;
     border:1px solid #B8860B;
+}
+
+#time_container {
+    padding:5px;    
     margin-right : 24px;
     width: 155px;
     margin-bottom:20px;

main/css/corporate/default.css

@@ -1361,25 +1361,7 @@ span.radio {
 .quiz_export_link {
 	float: right;
 }
-/*Exercice timer*/
-#square{
-  padding:5px;
-  background-color:#EEEEEE;
-  border:1px solid #CCCCCC;
-  margin-right : 24px;
-  width : 155px;
-  margin-bottom:20px;
-}
-#wrapper-clock{
-  width:100%;
-  margin:0;
-}
-.count_down{
-  padding: 3px;
-  font-size:22px;
-  font-weight:bold;
-  color:#222;
-}
+
 /*****************************************************
  *  BUTTONS	                                         *
  *****************************************************/