body {
  margin: 0;
  padding: 0;
  width: 100%;
  min-height: 100vh;
}

#app {
  margin: 0;
  padding: 0;
  background-color: #121212;
  display: grid;
  place-content: center;
  width: 100%;
  min-height: 100vh;
}

#myVideo {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  min-width: 100%;
  min-height: 100%;
}

body .text-interface {
  --black: rgba(255, 255, 255, 0);
}

body .text-interface h2 {
  background-color: #222;
  border-radius: 25px 25px 0 0;
  text-align: center;
}