body {background-color:#21b6dc;}


div#visitekaartje {

    width: 500px;
    height: 305px;
    
    position: absolute;
    top:0;
    bottom: 0;
    left: 0;
    right: 0;

    margin: auto;
}

div#visitekaartje h1 {
font-size:20pt;
text-align:center;
color:#fff;
font-family:Helvetica, Arial, Sans-Serif;
}