article {
	background-color: #FFF;
	}
h1 {
	color: #DDD;
	font-size: 4vh;
	text-shadow: 0px 0px 0.6em #444, 0.02em 0.02em 0.15em #000;
	}
a {
	color: #88F;
	text-decoration: none;
	}
a:hover {
	color: #AAF;
}
button {
	margin: 0px 10px 10px 0px;
	padding: 3px 5px;
	font-size: 1.1em;
	border: 1px solid #FFF;
	border-radius: 5px;
	color: #FFF;
	background-color: #C40;
	}
button:disabled {
	background-color: #A86;
	color: #CCC;
}
select {
	padding: 3px 5px;
	background-color: #EDB;
	border: 1px solid #FFF;
}

.sideblauw {
	top: 25vh;
	background-color: #66A;
	}
.vakblauw {
	width: 50vmin;
	float: left;
	margin: 1em;
	padding: 1em;
	background-color: #337;
	border: solid 0.2em #AAC;
	color: #AAC;
	}
.siderood {
	top: 50vh;
	background-color: #A66;
	}
.vakrood {
	min-width: 23em;
	float: left;
	margin: 1em;
	padding: 1em;
	background-color: #733;
	border: solid 0.2em #CAA;
	color: #CAA;
	}

#yard {
	position: absolute;
	top: 0px;
	left: 0px;
	width: 100vw;
	height: 100vh;
}