h1 {
	margin-top: 15px;
	margin-bottom: 15px;
	font-size: 40px;
	color: #333;
}

table td a {
	color: inherit;
	text-decoration: none;
}

.preview-table {
	width: 100%;
}
.preview-table td {
	border: 1px solid #ccc;
	padding: 10px 0;
	text-align: center;
}
.preview-table td.highlight {
	background: #cff4fc;
}
.preview-table td.oplossing-cell {
	background: #d1e7dd;
}