html,
body,
div,
h1,
p,
a,
video {
  margin: 0;
  padding: 0;
}

html,
body {
  height: 100%;
}

.content {
  position: relative;
  top: 30%;
  z-index: 2;
  margin: 0 auto;
  max-width: 720px;
  text-align: center;
  font-weight: bold;
}

.video {
  position: fixed;
  top: 50%;
  left: 50%;
  z-index: 1;
  min-width: 100%;
  min-height: 100%;
  width: auto;
  height: auto;
  -webkit-transform: translate(-50%, -50%);
      -ms-transform: translate(-50%, -50%);
          transform: translate(-50%, -50%);
}