css-select的三角在不同浏览器的样式是不一样的，所以我们这样解决？？？

 

 

 

 

select{

width:57px;

height:23px;

border:1px solid #e9e9e9;

outline: none;

appearance: none;

-moz-appearance: none;

-webkit-appearance: none;

background: url(../images/img/sjx.jpg) no-repeat scroll left center transparent;

background-size: 11px 7px;

background-position:41px;

padding-left: 3px;

}