[css3-layout] Override an unnecessary style rule from default.css

Author: bert-github

css-template/Overview.src.html

@@ -11,6 +11,10 @@
   /* Just in case an incorrect max-width occurs in default.css */
   body {max-width: none !important}
 
+  /* The TR postprocessor already inserted quotes: */
+  .css::before, .property::before, .descriptor::before {content: none}
+  .css::after, .property::after, .descriptor::after {content: none}
+
   .prod { font-family: inherit; font-size: inherit }
   pre.prod { white-space: pre-wrap; margin: 1em 0 1em 2em }
   code { font-size: inherit; }