ie select::-ms-expand{ display:none;}
火狐和谷歌
select { appearance: none; -moz-appearance: none; -webkit-appearance: none; background: transparent;}
清除option的样式同select，可参考。
禁止点击为 <select disabled="disabled"></select>
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>select和input清除默认样式</title> <style> .Car_task tr td select,.Car_task tr td input { width: 100%; height: 104%; border: 1px solid #e2e2e2; appearance: none; -moz-appearance: none; -webkit-appearance: none; background: transparent; text-align: center; text-align: -webkit-center; text-align: -moz-center; text-align-last: center; } </style> </head> <body> <div class="Car_task"> <div class="Log_details">日志详情</div> <table width="100%"> <thead> <tr><th width="30%">名称</th><th width="10%">类型</th><th width="20%">ip地址</th><th width="10%">端口号</th><th width='25%'></th></tr></thead> <tbody> <tr> <td width="30%"><input type="text" value="ceshi1" disabled="disabled"></td> <td width="10%"> <select disabled="disabled"> <option>1</option> <option>2</option> </select> </td> <td width="20%"><input type="text" value="192.168.0.222"></td> <td width="10%"><input type="text" value="8080" disabled="disabled"></td> <td width="25%"><button>修改</button> <button>删除</button></td> </tr> </tbody> </table> </div> </div> </body> </html>