app.css

html body {
  height: 100%;
  width: 100%;
  margin: 0px;
  padding: 0px;
}

.container.text-center {
  margin-top: 10px;
}

#camera_video {
  margin-top: 10px;
  width: 640px;
  height: 480px;
}

.centered {
  position: absolute;
  color: white;
  font-size: 10rem;
  font-weight: bold;
  top: 30%;
  left: 50%;
  transform: translate(-50%, -50%);
}

#temp_canvas {
  display: none;
}

#loading-bar-hidden {
  visibility: hidden;
  position: absolute;
  top: 25%;
  left: 50%;
  transform: translate(-50%, -50%);
}

#loading-bar {
  visibility: hidden;
  position: absolute;
  top: 25%;
  left: 50%;
  transform: translate(-50%, -50%);
}

/* Facebook Animation */
.lds-facebook {
  display: inline-block;
  position: relative;
  width: 64px;
  height: 64px;
}
.lds-facebook div {
  display: inline-block;
  position: absolute;
  left: 6px;
  width: 13px;
  background: white;
  animation: lds-facebook 1.2s cubic-bezier(0, 0.5, 0.5, 1) infinite;
}
.lds-facebook div:nth-child(1) {
  left: 6px;
  animation-delay: -0.24s;
}
.lds-facebook div:nth-child(2) {
  left: 26px;
  animation-delay: -0.12s;
}
.lds-facebook div:nth-child(3) {
  left: 45px;
  animation-delay: 0;
}
@keyframes lds-facebook {
  0% {
    top: 6px;
    height: 51px;
  }
  50%, 100% {
    top: 19px;
    height: 26px;
  }
}
/* Facebook Animation Ends */