html,
body {
  scroll-behavior: smooth;
}

.triangle-down {
  clip-path: polygon(50% 100%, 0 0, 100% 0);
}

#video {
  width: 100vw;
  height: 100vh;
  object-fit: cover;
  position: fixed;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  z-index: -1;
  opacity: .5;
}