anchor.diff:      #embed {
         border-radius: 4px;
         border: 1px solid #C7C7C7;
  +      background-color: #FFFFFF;
   
         /* TODO: @Jitachi */
         -webkit-box-shadow: 0px 1px 2px 0px #EAEAEA;
  
positive.code:     }
  
      #embed pre {
        border: none;
        background-color: #FFFFFF;
        padding: 15px;
        margin: 0;
      }
  
      .hljs {
  
negative.code:     }
  
      #embed footer {
        background-color: #FFFFFF;
        border-top: 1px solid #E6E6E6;
        padding: 10px 15px;
        color: #848D94;
  