html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
  background: #020812;
  font-family: Arial, Helvetica, sans-serif;
}

a-scene {
  width: 100%;
  height: 100%;
}

.video-source {
  display: none;
}

.side-play-button {
  position: fixed;
  top: 50%;
  right: 0;
  z-index: 20;
  width: 58px;
  height: 104px;
  padding: 0;
  border: 0;
  border-radius: 8px 0 0 8px;
  background: rgba(4, 12, 20, 0.72);
  cursor: pointer;
  transform: translateY(-50%);
  transition: opacity 180ms ease, transform 180ms ease, background 180ms ease;
}

.side-play-button:hover {
  background: rgba(4, 12, 20, 0.88);
}

.side-play-button:focus-visible {
  outline: 2px solid #ffffff;
  outline-offset: -5px;
}

.side-play-button.is-hidden {
  opacity: 0;
  pointer-events: none;
  transform: translateY(-50%) translateX(100%);
}

.side-play-button__arrow {
  display: block;
  width: 20px;
  height: 20px;
  margin: 0 auto;
  border-top: 5px solid #ffffff;
  border-right: 5px solid #ffffff;
  transform: rotate(45deg);
}

.a-enter-vr-button {
  border-radius: 999px;
  background-color: rgba(4, 12, 20, 0.82);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.32);
}