anchor.diff:  
       header {
         color: #F0F0F0;
  -      background: #C52F24;
  +      background: #C00;
         padding: 0.5em 1.5em;
       }
   
  
positive.code:     }
  
      h2 {
        color: #C52F24;
        line-height: 25px;
      }
  
  
negative.code: 
      .button_to {
        display: inline-block;
        margin-top: 0.75em;
        margin-bottom: 0.75em;
      }
  
      .hidden {
        display: none;
      }
  
      input[type="submit"] {
        color: white;
        background-color: #C00;
        border: none;
        border-radius: 12px;
        box-shadow: 0 3px #F99;
        font-size: 13px;
        font-weight: bold;
        margin: 0;
        padding: 10px 18px;
        -webkit-appearance: none;
      }
      input[type="submit"]:focus,
      input[type="submit"]:hover {
        opacity: 0.8;
      }
      input[type="submit"]:active {
        box-shadow: 0 2px #F99;
        transform: translateY(1px)
      }
  
  
      a { color: #980905; }
      a:visited { color: #666; }
  