* { box-sizing: border-box; }
.video-background {
  background: #FFF;
  position: fixed;
  top: 0; right: 0; bottom: 0; left: 0;
  z-index: -99;
}
.video-foreground,
.video-background iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

h1 { margin-top: 100vh; }
P { color: #000; font-family: Avenir, Helvetica, sans-serif; }
a { color: #000000; font-family: Avenir, Helvetica, sans-serif; }