* {margin:0;padding:0}

pre{background:#666; color:#fff; padding:10px; margin:10px; height:auto; overflow:auto; font:12px Verdana,Courier,sans-serif}
* html pre {width:100%}

.sample{padding:20px 30px; margin:4px 0 5px 0; background:#FFFFFF; border:1px solid #e1e1e1}

#cont{width:550px;margin:0 auto;background: #CCCCCC;text-align:left;padding:20px}

.buttons{padding:5px;}
.buttons span{color:#0080FF;padding:0 5px;cursor:pointer;font:10px Verdana}
.buttons span.active, .buttons span:hover{background:#0080FF;color:#fff}