셀렉트 박스 화살표

select{
	padding:8px 10px; color:#000; font-size:20px; border:1px solid #707070; width:100% !important;
    -webkit-appearance: none; -moz-appearance: none; appearance: none;
    background:url('/drop_down_btn.png') no-repeat 97% 50%/15px auto;
}
select::-ms-expand{display:none;/*for IE10,11*/}

<select>
	<option value="항목">항목</option>
</select>