/* Octopus Invaders - Fullscreen canvas, no-select, overflow hidden */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #0D1117;
  cursor: none;
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
}

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