body {
  margin: 0;
  height: 100vh;
  width: 100vw;
}

div.container {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

video {
  display: flex;
  margin: 50px;
  max-width: 1920px;
  width: 100%;
  height: auto;
}