Fix mobile menu rendering collision with tooltip.

JohnHeitmann · JohnHeitmann · commit 1182f09b1cf6 · 2018-12-18T13:55:30.000-08:00
Bring the mobile-mode menu in front of the ⓘ icon.
diff --git a/src/librustdoc/html/static/rustdoc.css b/src/librustdoc/html/static/rustdoc.css
@@ -997,7 +997,7 @@ span.since {
 		margin-left: -15px;
 		padding: 0 15px;
 		position: static;
-		z-index: 1;
+		z-index: 11;
 	}
 
 	.sidebar > .location {
