--- a/src/pyams_skin/resources/less/layout.less	Tue Mar 01 12:29:20 2016 +0100
+++ b/src/pyams_skin/resources/less/layout.less	Tue Mar 01 12:29:42 2016 +0100
@@ -233,6 +233,22 @@
 				margin-top: 3px!important;
 				padding: 2px 10px 3px!important;
 			}
+			.subtab {
+				display: none;
+				position: absolute;
+				min-width: 200px;
+				margin-top: -1px;
+				padding: 5px;
+				background-color: white;
+				border: 1px solid #ccc;
+				box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
+				z-index: 101;
+
+				.slider {
+					width: 170px;
+					margin: 0 10px;
+				}
+			}
 		}
 	}
 }