<style>
select{position:relative;left:
</style>
<div class=box
<option selected>網頁陶吧</option>
<option>設計在線</option>
<option>辦公軟件</option>
<option>工具軟件<option>
</select></div>
From:http://tw.wingwit.com/Article/program/Java/JSP/201311/19943.html