anchor.diff:  
   .content-left,
   .content-right {
  -	display: table-cell; 
  +	display: table-cell;
   	text-align: center;
   	width: 50%;
   	vertical-align: middle;
  
positive.code: }
  
  a, a:visited {
  	text-decoration: none;	
  	color: inherit;	
  }
  
  .navigation a:hover {
  
negative.code: 
  .content-right {
  	color: black;
  }
  
  .navigation li:first-child {
  	margin-top: 20px;
  