anchor.diff:  
   .contact {
     background-color: #fff;
  -  border: solid 1px #bbb;
  +  border: solid 1px #93A1A1;
     box-sizing: border-box;
  -  margin: 1em 0;
  +  margin: 0.75em 0;
     padding: 0.25em 1em;
     min-width: 60%;
   }
  
positive.code: article .address {
    background: url(<%= asset_path "stamp.png" %>) 95% 1em no-repeat;
    border: solid 1px #93A1A1;
    display: inline-block;
    margin: 1em 0;
    padding: 2em 15% 2em 15%;
    min-width: 35%;
  }
  
negative.code: 
  article .place {
    border: solid 1px #93A1A1;
    margin: 0.75em 0;
    padding: 1em;
  }
  
  