anchor.diff:  
       pre, code, .repl input, .repl .prompt span, textarea, .code_linenums {
           font-family: menlo, lucida console, monospace;
  -        font-size: 8pt;
  +        font-size: 12pt;
       }
   
       /* ---------------------------------------------------------------------
  
positive.code:         }
  
          nav.sidebar {
              width: 40%;
              left: 20px;
              top: 115px;
              bottom: 20px;
  
negative.code: 
          .frame_info {
              right: 0;
              left: 30%;
  
              padding: 20px;
              padding-left: 10px;
  