anchor.diff:      .source .data {
         font-size: 80%;
         overflow: auto;
  -      background-color: #fff;
  +      background-color: #FFF;
       }
   
       .info {
  
positive.code:   <meta charset="utf-8" />
    <title>Action Controller: Exception caught</title>
    <style>
      body { background-color: #fff; color: #333; margin: 0px}
  
      body, p, ol, ul, td {
        font-family: helvetica, verdana, arial, sans-serif;
  
negative.code: 
      .details {
        border: 1px solid #E5E5E5;
        border-radius: 4px;
        margin: 1em 0px;
        display: block;
  