layout.scss in sass-zero-1.1.1

- old
+ new

@@ -81,9 +81,13 @@
   }
 
   .u-show\@sm {
     display: block;
   }
+
+  .u-hide\@sm {
+    display: none;
+  }
 }
 
 @media print {
   .u-no-print {
     display: none !important;