body,
html {
  margin: 0;
  overflow: hidden;

  height: 100%;
}

body {
  background: blueviolet;
}
.container {
  display: flex;
  height: 100%;
  width: 100%;
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
}

.webcam-frame {
  border: 10px solid #6cff8c;
  width: 100%;
  height: auto;
  border-radius: 8px;
}