html, body {
  margin: 0;
  padding: 0;
}

body {
  display: table;
  position: absolute;

  height: 100%;
  width: 100%;

  background: #fe0;
}

#main {
  display: table-cell;
  vertical-align: middle;
}

#jelle {
  width: 768px;
  display: block;
  margin-left: auto;
  margin-right: auto;
}