a.logo {
	position:absolute;
	left:0;
	top:68px;
	background: url(logo.jpg) center no-repeat;
	height:133px;
	width:100%;
	display:block;
}

.demo a{ margin:0; padding:0; margin:5px 10px 5px 20px!important; margin:5px 10px 5px 10px; display:block;}
.demo a img{ float:left; padding:0; margin:5px;}
.main_content_demo{
	margin:0 auto;
	padding:0;
	width:900px;
	display:block;
}