body {
  margin: 0;
}

#canvas {
  background: #eee;
  width: 100vw;
  height: 100vh;
  position: relative;
}

.element {
  border: 2px solid #111;
  background: #eee;
  width: 10vh;
  height: 10vh;
  position: absolute;
}

.square {
  border-radius: 5px;
}

.circle {
  border-radius: 100%;
}

.tile {
  border-radius: 5px;
  transform: rotate(45deg);
}

button {
  position: absolute;
  display: block;
  font-family: Arial;
  font-size: 40vw;
  width: 100vw;
  height: 100vh;
  background: white;
  z-index: 1;
  top: 0;
  left: 0;
}

.fadeOut {
  pointer-events: none;
  z-index: -1;
  transition: 0.5s;
  opacity: 0;
  transform: scale(5, 5) rotate(180deg);
}