body {
  font-family: sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background-color: #f0f0f0;
}

.container {
  background-color: #fff;
  padding: 30px;
  border-radius: 8px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  text-align: center;
}

#wordDisplay {
  font-size: 56px; /* Điều chỉnh kích thước chữ theo ý muốn */
  margin-bottom: 20px;
  cursor: pointer;
}

button {
  background-color: #4CAF50;
  color: white;
  padding: 20px 20px;
  border: none;
  font-size: 50px;
  border-radius: 14px;
  cursor: pointer;
  margin: 0 5px;
}