index.css

body {
  background-color: #ffffff;
  margin: 0px;
  overflow: hidden;
}

canvas {width: 100%; height: 100%;}

#msg {
  position: absolute;
  font-family: 'Open Sans Condensed', sans-serif;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: .3em;
}

.msg-game {
  bottom: 10%;
  left: 10%;
  padding-right: 10%;
  font-size: 4vmin;
}

.msg-fin {
  top: 50%;
  transform: translateY(-50%);
  text-align: center;
  font-size: 10vmin;
  width: 100%;
}

.menu {
  position: absolute;
  bottom: 0;
  right: 0;
  transform: rotate(-90deg) translate(100%, -100%);
  transform-origin: right;
  font-size: 12px;
  line-height: normal;
}

.menu a {
  font-family: 'Open Sans', sans-serif;
  color: #000;
  opacity: .45;
  margin: 0 12px;
  text-decoration: none;
}

.menu a:hover { opacity: 1;}

.menu a.off { text-decoration: line-through; }