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

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #111;
  touch-action: none;
}

img {
  display: block;
  max-width: 100%;
  user-select: none;
  -webkit-user-drag: none;
}

button {
  font: inherit;
  border: none;
  background: none;
  cursor: pointer;
}

video {
  display: block;
}