Merge pull request #8348 from Rowno/compiled-font-shorthand

Prevent the font shorthand from getting compiled as division

less/mixins.less

@@ -71,7 +71,7 @@
 // CSS image replacement
 // Source: https://github.com/h5bp/html5-boilerplate/commit/aa0396eae757
 .hide-text() {
-  font: 0/0 a;
+  font: ~"0/0" a;
   color: transparent;
   text-shadow: none;
   background-color: transparent;