jquery – 删除多个选择默认背景

<select size="8" name="lstSelectedPackages" style="width:100%">
  <option value="" selected="selected">Select</option>
</select>

小提琴：http://jsfiddle.net/ux4DD/180/

谢谢！

<script type="text/javascript" src="js/jquery.js"></script>
<script type="text/javascript">

    $(function()
    {

        $("select option:selected").each(function ()
        {
            $(this).css('background-color','red');
        });

    });

</script>
<select name="garden">
    <option>Flowers</option>
    <option selected="selected">Shrubs</option>
    <option>Trees</option>
    <option>Bushes</option>
    <option>Grass</option>
    <option>Dirt</option>
</select>
<div></div>