body, html {
	padding:0;
	margin:0;
	width:100%;
}
.head{width:1920px;height:120px;left:50%;margin-left:-960px;overflow:hidden;position:relative;background:url(../images/title.jpg) no-repeat center;background-position-x:center;background-position-y:center;background-position:0px -0px}