清除浮动 2019-12-18

方法一

 //css    
     <style>
        .clearfix {
            overflow: auto;
            _heigth:1%;
        }
    </style>
//html
    <div class="container clearfix">
        <div class="center fl">123</div>
        <div class="left fl">123</div>
        <div class="right fl">123</div>
    </div>