body {
  font-family: Arial, sans-serif;
  text-align: center;
  background-color: #f0f0f0;
}

h1 {
  font-size: 2em;
}

#countdown {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: 50px;
}

#countdown > div {
  margin: 0 10px;
  font-size: 1.5em;
}

.number {
  font-size: 2em;
  font-weight: bold;
}

.label {
  display: block;
  font-size: 0.8em;
  margin-top: 5px;
}