header {
  position: relative;
  background-color: black;
  height: 75vh;
  min-height: 25rem;
  width: 100%;
  overflow: hidden;
}

video {
  position: absolute;
  top: 50%;
  left: 50%;
  min-width: 100%;
  min-height: 100%;
  width: auto;
  height: auto;
  z-index: 0;
  -ms-transform: translateX(-50%) translateY(-50%);
  -moz-transform: translateX(-50%) translateY(-50%);
  -webkit-transform: translateX(-50%) translateY(-50%);
  transform: translateX(-50%) translateY(-50%);
}

.container {
  position: relative;
  z-index: 2;
}

.overlay {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
  background-color: black;
  opacity: 0.5;
  z-index: 1;
}

.logo-zoom {
	-webkit-animation: logo-zoom 8s  3s both;
	        animation: logo-zoom 8s  3s both;
    width: 60%;
   /* background: rgba(255,255,255,.4);
    padding: 5rem;
    border-radius: 90px;*/

}

@-webkit-keyframes logo-zoom {
  0% {
    -webkit-transform: scale(0);
            transform: scale(0);
    opacity: 1;
  }
  100% {
    -webkit-transform: scale(1);
            transform: scale(1);
    opacity: 1;
  }
}
@keyframes logo-zoom {
  0% {
    -webkit-transform: scale(0);
            transform: scale(0);
    opacity: 1;
  }
  100% {
    -webkit-transform: scale(1);
            transform: scale(1);
    opacity: 1;
  }
}


@media (pointer: coarse) and (hover: none) {
  header {
    background: url('https://source.unsplash.com/XT5OInaElMw/1600x900') black no-repeat center center scroll;
  }
   video {
    display: none;
  }
}

@media only screen and (max-width: 480px) {
.logo-zoom {
    width: 60%;
    background-color: transparent;
    padding: 0;
    border-radius: 0;
    }
}