Shoreditch: Ensure Site Header isn't Overlapped

shoreditch/style.css

@@ -938,7 +938,7 @@ label {
 	-ms-flex-wrap: wrap;
 	flex-wrap: wrap;
 	position: relative;
-	z-index: 1;
+	z-index: 9999;
 }
 
 .site-branding {