body {
  margin: 0;
}

canvas {
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  cursor: crosshair;
}

#instructions {
  position: fixed;
  top: 0;
  left: 0;
  color: white;
  font-weight: 900;
  padding: 15px;
  font-family: 'Open Sans', sans-serif;
  background-color: #2fa1d6;
  transition: all .5s;
  transform: translate(0, 0);
}
#instructions.hidden {
  transform: translate(0, -100%);
}
#instructions > i {
  margin-left: 9px;
  cursor: pointer;
}