.banner_slider{
	width: 978px;
	height: 430px;
	margin: 0 auto;
	margin-bottom: 10px;
}
.banner_slider ul{
	width: 100%;
	height: 100%;
	position: relative;
}
.banner_slider ul li{
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
}