.clearfix:after {
	clear: both;
	display: table;
	content: '';
}

* {
	font-size: 10pt;
}

#body {
	margin: 0 auto;
	width: 958px;
}

#head, #intro, #foot {
	margin-top: 10px;
}

#head>div {
	font-size: 13pt;
	border: 1px lightgray solid;
	height: 100px;
	width: 472px;
	float: left;
	margin-right: 10px;
	box-shadow: 2px 2px 2px #eee;
}

#head>div:last-child {
	margin-right: 0;
	
}

#intro>div {
	border: 1px lightgray solid;
	height: 100px;
	float: left;
	margin-right: 10px;
}

#intro>div:last-child {
	margin-right: 0;
}

#intro-left {
	width: 231px;
}

#intro-center {
	width: 470px;
}

#intro-right {
	width: 231px;
}

#foot {
	border: 1px lightgray solid;
	height: 100px;
}