直接上代码
<style type="text/css">
*{
margin: 0;
padding: 0;
}
.box{
width: 200px;
position: relative;
}
.box .icon-search{
width: 20px;
height: 20px;
position: absolute;
top: 6px;
right: 0;
}
.box .username{
padding-left: 30px;
height: 25px;
}
</style>
</head>
<body>
<div class="box">
<input type="text" class="username" />
<i class="icon-search">图</i>
</div>
</body>
原文：https://www.cnblogs.com/jxl123456/p/12896316.html