body {
  margin: 0;
  padding: 0;
  background-color: white;
  font-family: Arial, sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.container {
  text-align: center;
}

h1 {
  font-size: 4rem;
  margin-bottom: 40px;
  color: black;
}

.keyboard {
  display: inline-block;
}

.row {
  margin: 5px 0;
}

.key {
  display: inline-block;
  border: 2px solid black;
  padding: 10px 15px;
  margin: 2px;
  border-radius: 4px;
  font-size: 1rem;
}