IE6layout元素自动包含浮动元素

.father {
    background-color: #CFF;
    width:500px;/*触发haslayout*/
    margin-bottom:12px;
}
.son{
    float:left;
    width:200px;
    height:200px;
    background:#CC3;
    margin-right:14px;
}
.footer{
    width:500px;
    background:#FCF;
}

<div class="father">
   <div class="son">此处显示  class "son" 的内容</div>
   <div class="son">此处显示  class "son" 的内容</div>
</div>