anchor.diff:  
   a[rel="external"]:after {
     content: url(<%= asset_path "external-link.png" %>);
  -  padding: 0 0.25em 0 0.25em;
  +/*  padding: 0 0.25em 0 0.25em;*/
   }
   
   /*
  
positive.code:   position: relative;
    text-decoration: none;
    -webkit-transition: background-color 0.5s ease-in-out;
  }
  .button:hover {
    background-color: #DD322D;
    color: #fff;
  
  }
  .button:active {
    top: 1px;
  }
  .button:focus {
  
negative.code: }
  
  .button.medium {
    font-size: 1.25em;
  }
  
  .button.big {
  