.sub-menu1{float: left; width: 100%; background-color: #045455; display: flex; justify-content:center; align-items: center;}
.sub-menu1 .menu{float: left; width: 100%;}
.sub-menu1 .menu .title {float: left; width: 100%; height: 60px; line-height: 60px; padding: 0px 20px 0px 20px; text-align: left; font-size: 16px; font-weight: bold; color: #fff; border:none;

/*将默认的select选择框样式清除*/
	appearance:none;
	/*在选择框的最右侧中间显示小箭头图片*/
	background: url(images/down_more.jpg) no-repeat scroll right center transparent;
}