*{margin: 0;padding: 0;}
ul,li{list-style: none;}
a{text-decoration: none;}
html{
	width: 100%;
	height: 100%;
}
.beij{
	position: absolute;left: 0;top: 0;
	width: 100%;
	height: 100%;
	background:#fff;
	overflow: auto;
}