如下图展示
未展开状态
展开状态
上代码：
<style>
div{
width: 200px;
height: 40px;
border-radius: 5px;
box-shadow: 0 0 5px #ccc;
position: relative;
}
select{
border: none;
outline: none;
width: 100%;
height: 40px;
line-height: 40px;
appearance: none;
-webkit-appearance: none;
-moz-appearance: none;
padding-left: 60px;
}
</style>
<div>
<select name="">
<option value="1"> php在线运行</option>
<option value="2"> java在线运行</option>
<option value="3"> java在线运行</option>
</select>
</div>
