/* oh. hai gurl hai. */

body {

  font-size: 80%;
  padding: 20px;
}

main {
  position: relative;
  height: 800px;
  width: 800px;
  margin: 0 auto;
  padding: 0px;
}

main div {
  width: 800px;
  height: 800px;
  margin: -400px 0 0 -400px;
  position: absolute;
  top: 50%;
  left: 50%;
}