.call_box {
  width: 100%;
  height: 500px;
  position: relative;
  overflow: hidden;
  border: 1px solid #ddd;
  margin-bottom: 15px;
}

#remote_video, #local_video {
  border: 3px solid #eee;
  box-shadow: 2px 2px 8px rgba(0, 0, 0, 0.1);
  width: 100%;
  height: 100%;
  object-fit: cover;
}

#remote_video {
  position: absolute;
  top: 0;
  left: 0;
}

#local_video {
  position: absolute;
  bottom: 10px;
  right: 10px;
  width: 30%;
  height: 30%;
}