.container {
  text-align: center;
  margin-top: 20px;
}

#instruction {
  font-size: 1.2em;
  margin-bottom: 20px;
  font-weight: bold;
  color: black;
}

#video {
  width: 320px;
  height: auto;
  border: 1px solid #ccc;
}

#canvas {
  display: none;
}

#result {
  margin-top: 15px;
  font-size: 1.1em;
  color: green;
  white-space: pre-line;
}

#footer {
  margin-top: 20px;
  font-size: 1.2em;
  font-weight: bold;
  color: black;
}

#enableSoundBtn {
  margin-top: 15px;
  padding: 10px 20px;
  font-size: 1em;
  background-color: #ff5555;
  color: white;
  border: none;
  border-radius: 10px;
  cursor: pointer;
}