ui: ensure header doesn't float in smaller screens.

rhodecode/public/css/main.less

@@ -239,6 +239,7 b' input.inline[type="file"] {'
     // for the header and then remove the min-height. I chose a smaller value
     // intentionally here to avoid rendering issues in the main navigation.
     min-height: 49px;
+    min-width: 1024px;
 
 	position: relative;
 	vertical-align: bottom;
@@ -1069,6 +1070,9 b' label {'
     a {
       color: @grey5
     }
+    @media screen and (max-width: 1200px) {
+      display: none;
+    }
 }
 
 img {