#live {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 100%;
  background-color: #000;
  display: none;
}
#local-video {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 250px;
  -webkit-transform: scaleX(-1);
  transform: scaleX(-1);
  margin: 16px;
  border: 2px solid #fff;
}
#remote-video {
  position: absolute;
  max-width: 100%;
  height: 100%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
#end-call {
  position: absolute;
  bottom: 0;
  right: 0;
  padding: 8px;
  background-color: red;
  color: white;
  border: none;
  margin: 16px;
}