body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  margin: 0;
  padding: 0;
  width: 100vw;
  height: 100vh;
  /* display: flex; */
}
#contain {
  margin-top: 50px;
  display: flex;
  justify-content: center;
  align-items: center;
}

canvas {
  position: absolute;
}

#result {
  display: block;
  margin: 0 auto;
}
@media screen and (max-width: 992px) {
  video {
    width: auto;
    height: auto;
  }
}