<span style="width:118;border:1px solid green;overflow:hidden"><select style="width:120;margin:-2px">
<option>1111</option>
<option>11111111111111</option>
<option>111111111</option>
</select></span>
<option>1111</option>
<option>11111111111111</option>
<option>111111111</option>
</select></span>
<span style="width:118;border:1px solid green;overflow:hidden">
<SELECT name=sdt style="width:120;margin:-2px;BACKGROUND-COLOR:#bbbbc1">
<option value="all"> csdn</option>
<option value="1">web开发</option>
<option value="2">多媒体/设计</option>
<option value="3">more</option>
<option value="4">more</option>
</SELECT>
http://lucky.myrice.com/temp/select.htm