.fullscreen-bg {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    overflow: hidden;
    z-index: -100;
}

.fullscreen-bg__video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

@media (min-aspect-ratio: 16/9) {
  .fullscreen-bg__video {
    width: 100%;
    height: auto;
  }
}

@media (max-aspect-ratio: 16/9) {
  .fullscreen-bg__video {
    width: auto;
    height: 100%;
  }
}

@media (min-aspect-ratio: 16/9) {
  .fullscreen-bg__video {
    height: 300%;
    top: -100%;
  }
}

@media (max-aspect-ratio: 16/9) {
  .fullscreen-bg__video {
    width: 300%;
    left: -100%;
  }
}

@media (max-width: 767px) {
  .fullscreen-bg {
    background: url('../img/bg.jpeg') center center / cover no-repeat;
  }

  .fullscreen-bg__video {
    display: none;
  }
}