w获取浏览器标识
<style> .w > td { <?php $wua=$_SERVER['HTTP_USER_AGENT']; if(strpos($wua, 'Chrome')){ echo ' 25px;'; }elseif(strpos($wua, 'Firefox')){ echo ' 24px;'; }else{ echo ' 25px;'; } ?> background-color: #fff; overflow: hidden; font-size: 80%; word-wrap: break-word; padding: 0; } #w, #w + tr, .w > td { border: 1px solid #000000; } </style>