responsively hide site heading during suggestions-mode

media/css/mkt/suggestions.less

@@ -82,6 +82,9 @@
     #search, #search-q {
         width: 235px;
     }
+    h1 {
+        display: none;
+    }
 }
 
 // This works between and desktop over 600px.
@@ -131,4 +134,7 @@
             bottom: inherit;
         }
     }
+    #site-header.suggestions h1 {
+        display: inline-block;
+    }
 }