* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  /* overflow: hidden; */
}

body {
  background-color: #333;
  color: white;
  overflow: hidden;
}

#header {
  background-color: #000000;
  /* position: relative; */
  margin-left: auto;
  margin-right: auto;
  /* margin-top: auto;
  margin-bottom: auto; */
  width: 100%;
  height: 100vh;
  text-align: center;
  overflow: hidden;
  /* height: 100vh; */
  /* padding-top: 30px;
  padding-bottom: 30px; */
  /* animation: shortOpening 5s; */
  
}

#matrix {
  position: absolute;
  top: 0;
  left: 0;
  opacity: 0.5;
  z-index: 101;
}

#mordhau {
  opacity: 0.7;
  /* display: none; */
  position: absolute;
  top: 0;
  left: 0%;
  width: 100%;
  height: 100%;
}

#symbiot {
  position: absolute;
  /* opacity: 0; */
  top: 0;
  left: 0%;
  width: 100%;
  height: 100%;
  z-index: 99;
  -webkit-animation: flickerAnimation 9s infinite;
  -moz-animation: flickerAnimation 9s infinite;
  -o-animation: flickerAnimation 9s infinite;
  animation: flickerAnimation 9s infinite;
}

#Video {
  opacity: 0.8;
  position: absolute;
  /* display: none; */
  object-fit: fill;
  top: 0;
  left: 0;
  /* animation: longOpening 258s ; */
  /* animation: shortOpening 4s; */
  
  /* visibility: hidden; */
  /* max-width: 100%; */
  height: 100vh;
  width: 100%;
  z-index: 100;
  /* box-sizing: border-box; */
}

@keyframes mordhauOpening {
  0%,50% {
      opacity: 0;
  }
  100% {
      opacity: 1;
  }
}

@keyframes longOpening{
  0% {
      opacity: 0;
  }
  10% {
      opacity: 1;
  }
}

@keyframes shortOpening {
  0% {
      opacity: 0;
  }
  100% {
      opacity: 1;
  }
}

@keyframes flickerAnimation {
  0%   { opacity:0; }
  15%   { opacity:0; }
  50%  { opacity:1; }
  70%  { opacity:1; }
  100% { opacity:0; }
}
@-o-keyframes flickerAnimation{
  0%   { opacity:0; }
  15%   { opacity:0; }
  50%  { opacity:1; }
  70%  { opacity:1; }
  100% { opacity:0; }
}
@-moz-keyframes flickerAnimation{
  0%   { opacity:0; }
  15%   { opacity:0; }
  50%  { opacity:1; }
  70%  { opacity:1; }
  100% { opacity:0; }
}
@-webkit-keyframes flickerAnimation{
  0%   { opacity:0; }
  15%   { opacity:0; }
  50%  { opacity:1; }
  70%  { opacity:1; }
  100% { opacity:0; }
}

@media (max-width: 700px) {

  #Video {
    position: absolute;
    top: 0;
    left: -95%;
    width: 300%;
    max-height: 100%;
  }
  
  #mordhau {
    position: absolute;
    top: 0;
    left: -50%;
    width: 200%;
    max-height: 100%;
  }

  #symbiot {
    position: absolute;
    top: 0;
    left: -50%;
    width: 200%;
    max-height: 100%;
  }

}