select框默认样式去除（ie中隐藏默认下拉图标）

<select class="info-select">
<option selected="selected">1</option>
<option>2</option>
</select>

/*清除ie的默认选择框样式清除，隐藏下拉箭头*/
select::-ms-expand { display: none; }
.info-select{
width: 12%;
margin-left: 64%;
border: none;
outline: none;
/*将默认的select选择框样式清除*/
appearance:none;
-moz-appearance:none;
-webkit-appearance:none;
-ms-appearance:none;
/*在选择框的最右侧中间显示小箭头图片*/
background: url(../img/arrow.png) no-repeat scroll right center transparent;
}