body {
  font-family: Arial, sans-serif;
  text-align: center;
  margin-top: 50px;
  background: #f4f4f4;
}

#display {
  font-size: 48px;
  margin-bottom: 20px;
  color: #333;
}

button {
  font-size: 18px;
  margin: 5px;
  padding: 10px 20px;
  border: none;
  background: #007BFF;
  color: white;
  border-radius: 5px;
  cursor: pointer;
}

button:hover {
  background: #0056b3;
}

#laps {
  margin-top: 20px;
  list-style-type: none;
  padding: 0;
}
#laps li {
  font-size: 18px;
  margin: 5px 0;
}