.video-parallax-container video {
  top:50%;
  left:50%;
  min-width:100vw;
  min-height:100%;
  width:auto;
  height:auto;
  z-index:-100;
  transform:translateX(-50%) translateY(-50%);
  background-size:cover;
  transition:1s opacity;
  -webkit-transition-position:fixed;
  position:fixed;
  overflow:hidden;
}

.video-parallax-container {
  height:100vh;
  overflow:hidden;
}