body {
  font-family: Arial, sans-serif;
  background: linear-gradient(135deg, #4e54c8, #8f94fb);
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

.container {
  background: white;
  padding: 30px;
  border-radius: 10px;
  text-align: center;
  width: 300px;
}

h1 {
  margin-bottom: 20px;
}

#display {
  font-size: 40px;
  margin-bottom: 20px;
}

.buttons button {
  padding: 10px 15px;
  margin: 5px;
  font-size: 16px;
  cursor: pointer;
}

#laps {
  margin-top: 20px;
  text-align: left;
  max-height: 150px;
  overflow-y: auto;
}

#laps li {
  padding: 5px;
  border-bottom: 1px solid #ddd;
}