Code + Pre

CSS

pre {
 font-size: 12px;
 padding: 0;
 margin: 20px;
 background: #f0f0f0;
 border-left: 1px solid #ccc;
 line-height: 20px;
 background: url(pre_code_bg.gif) repeat-y left top;
 width: 600px;
 overflow: auto;
 overflow-Y:hidden;
}