图片上传自定义样式

css

<style>
div,input,img{margin:0;padding:0;font-size:12px;}
.filt_box{position:relative;width:90px;height:60px;overflow:hidden;cursor:pointer;}
.filt_box img{position:absolute;left:0;top:0;}
.filt_box input{width:90px;height:60px;display:block;position:absolute;left:0;top:0;z-index:10;filter:alpha(opacity=0);moz-opacity:0;opacity:0;}
</style>

html

<div class="filt_box">
 　　<img src="./ajax-loader.gif"/>
 　　<input type="file"/>
 </div>