body {
  position: fixed;
  margin: 0;
  padding: 0;
  width: 100%;
  top: 0px;
  bottom: 0px;
  overflow: auto;
  overflow-x: hidden;
}

iframe {
  width: 100vw;
  height: 100vh;
  border: none;
}

video {
  width: 100vw;
  height: 100vh;
}

@media screen and (min-width: 1000px) {
  body {
    position: absolute;
  }
}