时间：2021-08-02 07:29:33 | 栏目：jquery | 点击：次
实例如下：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <span style="position:relative"> <select> <option value="1">1</option> <option value="2">2</option> <option value="3">3</option> </select> <div style="position:absolute;width:100%;height:100%;left:0px;top:0px;background:#fff;opacity:0;filter:alpha(opacity=0)"> </div> <br /> <select> <option value="1">1</option> <option value="2">2</option> <option value="3">3</option> </select> </span>
缺点：需明确的知道select的位置