/*清除浮动*/
.clearfloat{
	zoom:1
}

.clearfloat:after{
	display:block;
	clear:both;
	content:"";
	visibility:hidden;
	height:0
}


.container{
	width: 100%;
}

/*中间居中盒子*/
.center{
	width: 1200px;
	margin: 0 auto;
}