html,body{ 
	width:100%;
    height:100%;
	background:#111;
}
.jumbotron {
    margin-bottom: 0px;
    background-color: #222529;
}
.hoofdtitel {
    color: #006182;
    font-size: 400%;
    font-weight: 500;
    text-shadow: 1px 1px 3px #000;
}
.subonderwerp {
    color: #006182;
    text-shadow: 1px 1px #fff;
    font-size: 200%;
    font-weight: 600;
}
.align-height {
    display: flex;
    align-items: center;
}
.align-width {
    display: flex;
    justify-content: center;
}