body {
  background-color: white;
  color: black;
  font-family: Verdana;
}

.video-background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: -1;
}

.video-background iframe {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 177.77vh; /* 16:9 ratio */
  height: 100vh;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

body {
  margin: 0;
}