anchor.diff:        
         #header {
           width: 100%;
  -        color: white;
  +        color: #FFFFFF;
           background-color: #333;
         }
   
  
positive.code:       
        #main_content_area {
          width: 960px;
          margin-left: auto;
          margin-right: auto;
          margin-top: 40px;
          margin-bottom: 40px;
          padding-top: 10px;
          padding-bottom: 10px;
          background-color: white;
        }
        
        .job {
  
negative.code:       .job_output {
          padding: 10px;
          background-color: #333;
          color: #FFFFFF;
          overflow: scroll;
          font-size: 12px;
          line-height: 1.2em;
  