html, body {
  display: block;
  margin: 0;
  background-color: #000;
}

#bg__video {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover; /* Fills container while maintaining aspect ratio */
  z-index: -1;      /* Places video behind other content */
  opacity: 0.7;
}