diff --git a/htdocs/theme/yellow/yellow.css b/htdocs/theme/yellow/yellow.css
index 944a473edcf..fa2f06be40c 100644
--- a/htdocs/theme/yellow/yellow.css
+++ b/htdocs/theme/yellow/yellow.css
@@ -24,6 +24,67 @@ body
   background: #ebebe0; 
   font-family: sans-serif; font-size: 0.95em; 
 }
+
+
+div.tabBar {
+  color: #436976;
+  background: #dee7ec;
+  padding: 0em 1.5em;
+  margin: 0em 0em 1.5em 0em;
+  border: 1px solid #8CACBB;
+}
+
+
+div.tabs {
+  margin: 0em;
+  padding: 0em 3em;
+  text-align: left;
+}
+
+div.tabsAction {
+  margin: 0em;
+  padding: 0em 0em;
+  text-align: right;
+}
+
+a.tab {
+  background: white;
+  border: 1px solid #8CACBB;
+  color: #436976;
+  font: 100% Bold;
+  padding: 0em 1.5em;
+  margin: 0em 0.5em;
+  text-decoration: none;
+  white-space: nowrap;
+}
+
+a.tabAction {
+  background: white;
+  border: 1px solid #8CACBB;
+  color: #436976;
+  font: 105% Bold;
+  padding: 0em 1.5em;
+  margin: 0em 0.5em;
+  text-decoration: none;
+  white-space: nowrap;
+}
+
+a.tabAction:hover {
+  background: #dee7ec;
+}
+
+
+a.tab#active {
+  background: #dee7ec;
+  border-bottom: #dee7ec 1px solid;
+}
+
+a.tab:hover {
+  background: #dee7ec;
+}
+
+
+
 /*
  *   Menu superieur
  */