.demo a{ float:left; margin:0; padding:0; margin:15px 4px 0px 2px!important;  display:block;  }
.demo a img{ float:left; margin:0; padding:0;   border:0px;}
ul,li,dl,dt,dd{
	list-style-type:none;
	margin:0;
	padding:0;
}
.main_content_demo{
	margin:0 auto;
	padding:0;
	width:100%;
	display:block;
}