anchor.diff:      position: absolute;
       right: 2px;
       top: 2px;
  -    z-index: 101;
  +    z-index: 201;
   	width: 16px;
   	height: 16px;
   	cursor: pointer;
  
positive.code:     border: #666 1px solid;
      background-color: #fff;
      padding: 2px;
      z-index: 100;
      width: 20em;
  }
  
  
negative.code:     right: 2px;
  	top: 2px;
      position: absolute !important;
  	z-index: 100;
  }
  
  div.special_purpose img {
  