未加工
<div style= "width:800px; border:1px solid red; ">
<div style= "width:900px; border:1px solid black; ">
</div>
</div>
<br>
超出出现滚动条
<div style= "width:800px; border:1px solid GREEN;overflow:auto; ">
<div style= "width:900px; border:1px solid black; ">
</div>
</div>
<br>
超出隐藏
<div style= "width:800px; border:1px solid BLUE;overflow:hidden; ">
<div style= "width:900px; border:1px solid black; ">
</div>
</div>
相关文章：