<html>
<head>
<style>
.div1{
width:600px
height:200px
font-size:13px
}
.div select{
width:200px
}
.div select option{
width:150px
height:30px
}
</head>
<body>
<div class='div1'>
<select>
<option value="volvo">Volvo</option>
<option value="saab">Saab</option>
<option value="opel">Opel</option>
<option value="audi">Audi</option>
</select>
</div>
</body>
</html>
<html xmlns=" http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"><head>
<meta http-equiv="Content-Type" content="text/htmlcharset=utf-8" />
<title></title>
<style type="text/css">
<!--
div {
border:1px solid #c00
width:123px
height:18px
clip:rect(0px,18px,22px,0px)
overflow:hidden
}
select {
position:relative
left:-2px
top:-2px
font-size:12px
width:125px
line-height:18pxborder:0px
color:#909993
}
-->
</style>
</head>
<body>
<div>
<select>
<option>345345</option>
<option>345345</option>
<option>345345</option>
<option>345345</option>
<option>345</option>
<option>345345</option>
<option>345345345</option>
</select>
</div>
</body>
</html>或许您对此依然不满意,对此也无能为力,更多的方法是用js来进行控制和修改它的外表,在select外观上没给用户多少“自由”。