.demo a{ float:left; margin:0; padding:0; margin:5px 0px 5px 0px; display:block; background:url(bg_tms.jpg) no-repeat; width:170px; height:116px;}
.demo a img{ float:left; margin:0; padding:0; margin:10px 0 0 13px; background:url(bg_tms.jpg) no-repeat; width:142px; height:96px;}
ul,li,dl,dt,dd{
	list-style-type:none;
	margin:0;
	padding:0;
}
.main_content_demo{
	margin:0 auto;
	padding:0;
	width:950px;
	display:block;
}