body,html{
	color:#000;
	line-height:15px;
	background-color:#c1ccfa;
	font-family: "Bookman Old Style", Arial;
	font-size: 12px;
}
h1,h2,h3{visibility:hidden;display:none;}
h4{margin:0;padding:0;}
a{
	outline:0;
	color:#000;
}
img{
	border:0;
	text-align: center;
}
#boek-open{
	margin:0 auto;
	width:1024px;
	height:648px;
	position:relative;
	background:url('../images/boek-open-achtergrond.jpg') no-repeat;
	font-family: "Bookman Old Style";
}
#boek-open #vak-4-5 {
	background-image: url(../images/vakken/4/bso.png);
	height: 100px;
	width: 250px;
}