body {
  background-color: #121212;
  color: #fff;
  font-family: 'Poppins', sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
}

.center {
  text-align: center;
}

#banner {
  font-size: 24px;
  font-weight: bold;
  padding: 10px;
  background-color: #333;
  color: #fff;
  border-radius: 10px;
  box-shadow: 2px 2px 10px rgba(0, 0, 0, 0.5);
}

#clock {
  font-size: 50px;
  background-color: #ff9800;
  padding: 20px 50px;
  margin-top: 15px;
  border-radius: 15px;
  box-shadow: 4px 4px 15px rgba(255, 152, 0, 0.5);
}