Multiple UI Improvements (#3038)

webapp/sass/responsive/_mobile.scss

@@ -1,6 +1,12 @@
 @charset 'UTF-8';
 
 @media screen and (max-width: 768px) {
+    .post-code__language {
+        @include opacity(.6);
+        @include transition(none);
+        display: block;
+    }
+
     .backstage-filters {
         display: block;
 
@@ -1024,3 +1030,11 @@
         }
     }
 }
+
+@media screen and (max-width: 320px) {
+    .tip-overlay {
+        &.tip-overlay--sidebar {
+            min-height: 440px;
+        }
+    }
+}