代码如下
<style type="text/css"> .box1 {border:1px #cccccc solid; 500px; height:600px;position:relative;} .box2 {border-top:1px #cccccc solid; background:#f2f6fb; 498px; height:22px; position:absolute; bottom:1;background-color:red;} </style> <div class="box1"> <div class="box2"></div> </div>