console 命令行工具 X clear

console

<div style="border:4px solid blue;float:left">
    <div style="width:200px;border:4px solid red;float:left;">
        我是浮动元素1
    </div>
    <div style="width:200px;border:4px solid yellow;float:left;">
        我是浮动元素2
    </div>
</div>
<div style="clear:both;">我是页脚</div>