main {
  align-items: center;
  display: flex;
  height: 100vh;
  justify-content: center;
  width: 100vw;
}

#canvas,
#video,
#buttons {
  display: none;
}

button {
  color: #558;
  cursor: pointer;
  border: 0.3em solid #558;
  font-weight: bold;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.35em 1em;
  transition: 0.2s;
}

button:hover,
button:active {
  background: #558;
  box-shadow: 0 0 3px #000;
  color: #fff;
}

#canvas,
#buttons {
  float: left;
}

#buttons {
  max-width: 400px;
}

#buttons button {
  display: block;
  margin: 10px 0 0 10px;
  text-align: center;
  width: 200px;
}

#access {
  display: block;
  font-size: 1.5em;
}

canvas {
  height: auto;
  max-width: 1600px;
}