1 files changed, 18 insertions, 4 deletions
diff --git a/lib/dijit/themes/tundra/layout/BorderContainer.css b/lib/dijit/themes/tundra/layout/BorderContainer.css
index 076460f15..0dd1b1b51 100644
--- a/lib/dijit/themes/tundra/layout/BorderContainer.css
+++ b/lib/dijit/themes/tundra/layout/BorderContainer.css
@@ -1,49 +1,63 @@
+/* BorderContainer */
 
 .tundra .dijitBorderContainer {
 	background-color: #fcfcfc;
 	padding: 5px;
 }
+
 .tundra .dijitSplitContainer-child,
 .tundra .dijitBorderContainer-child {
-	
+	/* By default put borders on all children of BorderContainer,
+	 *  to give illusion of borders on the splitters themselves.
+	 */
 	border: 1px #ccc solid;
 }
+
 .tundra .dijitBorderContainer-dijitTabContainerTop,
 .tundra .dijitBorderContainer-dijitTabContainerBottom,
 .tundra .dijitBorderContainer-dijitTabContainerLeft,
 .tundra .dijitBorderContainer-dijitTabContainerRight {
-	
+	/* except that TabContainer defines borders on it's sub-nodes (tablist and dijitTabPaneWrapper),
+	 * so override rule setting border on domNode
+	 */
 	 border: none;
 }
+
 .tundra .dijitBorderContainer-dijitBorderContainer {
-	
+	/* also, make nested BorderContainers look like a single big widget with lots of splitters */
 	border: none;
-	padding: 0px;
+	padding: 0;
 }
+
 .tundra .dijitSplitterH,
 .tundra .dijitGutterH {
 	background:#fcfcfc;
 	border:0;
 	height:5px;
 }
+
 .tundra .dijitSplitterH .dijitSplitterThumb {
 	background:#B0B0B0 none;
 	height:1px;
 	top:2px;
 	width:19px;
 }
+
 .tundra .dijitSplitterV,
 .tundra .dijitGutterV {
 	background:#fcfcfc;
 	border:0;
 	width:5px;
 }
+
 .tundra .dijitSplitterV .dijitSplitterThumb {
 	background:#B0B0B0 none;
 	height:19px;
 	left:2px;
 	width:1px;
 }
+
+/* active splitter */
 .tundra .dijitSplitterActive {
 	font-size: 1px;
 	background-image: none;