body {
  font-family: Arial, sans-serif;
  background: #f4f4f4;
  padding: 20px;
  text-align: center;
}
.container {
  max-width: 600px;
  margin: 0 auto;
  background: #fff;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}
video {
  width: 100%;
  border: 2px solid #ddd;
  border-radius: 4px;
}
.buttons {
  margin-top: 15px;
}
button {
  padding: 10px 15px;
  margin: 5px;
  border: none;
  border-radius: 4px;
  background: #007bff;
  color: #fff;
  cursor: pointer;
}
button:hover {
  background: #0056b3;
}
#result {
  text-align: left;
  background: #eef;
  padding: 10px;
  margin-top: 20px;
  height: 200px;
  overflow: auto;
}