<div style="position:relative;">		<span style="margin-left: 100px; width: 18px; overflow: hidden;">					<select id="brand" name="brandId" style="width:150px; margin-left:-100px;height:21px;">						<option value="http://www.mamicode.com/0"></option>						<option value="http://www.mamicode.com/0">奥迪</option>						<option value="http://www.mamicode.com/0">奔驰</option>					</select>					</span><input id="brand_i"  name="brandTxt" style="width:127px; position:absolute; left:0px;height:16px;"/>		</div>