*{
	margin: 0;
	padding: 0;
	box-sizing: border-box;
}
body{
	font-family: "microsoft yahei","simsun","tahoma";
	width: 100%;
	margin: 0 auto;
}
li{
	list-style: none;
}
img{
	display: block;
}
a{
	display: inline-block;
	text-decoration: none;
}
.clear{
	clear: both;
}