Twenty Twelve: Fixes submenu hiding under slideshow block.

Whilst initially this could be thought to be solved in Jetpack due to submenus only having a z-index of 1 a fix is desirable. This brings in the suggested value.

Props robertghetau, SergeyBiryukov, sabernhardt, poena, narenin.
Fixes #55892.


git-svn-id: https://develop.svn.wordpress.org/trunk@58776 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-content/themes/twentytwelve/css/ie.css

@@ -108,7 +108,7 @@ body.full-width .site-content {
 	padding: 0;
 	position: absolute;
 	top: 100%;
-	z-index: 1;
+	z-index: 99999;
 	height: 1px;
 	width: 1px;
 	overflow: hidden;

src/wp-content/themes/twentytwelve/style.css

@@ -1606,7 +1606,7 @@ img#wpstats {
 		padding: 0;
 		position: absolute;
 		top: 100%;
-		z-index: 1;
+		z-index: 99999;
 		height: 1px;
 		width: 1px;
 		overflow: hidden;