body {
  margin: 0;
  padding: 0;
  overflow: auto;
  background-color: black;
  height: 100vh;
  position: relative;
}

#container {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.robert {
  display: block;
  max-width: none;
  cursor: pointer;
}