|zyciis| 如何设置一个DIV的高度为固定高库 超出的不显示出来

Question

 <div style="bgcolor:red;height:30px;work-break:break-all;overflow:hidden;">aaaaaaaaaaaaaaaaaaaaaa<br/>aaaaaaaaaaaaaaaa<br/>aaaaaaaaaaaa<br/>aaaaaaaaaaaaaaaaaa</div>

Answer 1

<div style="overflow:hidden;">

Answer 2

<script>
var Change=function(number){
document.getElementById("test").style.height=number*20;
};
window.onload=function(){
Change(3);
};
</script>
<div id="test" style="background-color:red;overflow:hidden;">
aaaaaaaaaaaaaaaaaaaaaa<br/>
aaaaaaaaaaaaaaaa<br/>
aaaaaaaaaaaa<br/>
aaaaaaaaaaaaaaaaaa
</div>
================
这样吗？

Answer 3

<div style="overflow:hidden;"></div> 这样不就OK了？