.game {
  position: absolute;
  top: 0;
  bottom: 0;
  right: 0;
  left: 0;
  margin: auto; }

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box; }

body {
  background: #e7e7e7;
  font-family: 'Roboto', sans-serif; }

.game {
  background: #eee; }