body { font-family: Arial, sans-serif; color: #333; background-color: #f9f9f9; padding: 30px; } .container { display: flex; flex-direction: column; align-items: center; justify-content: center; height: 100vh; text-align: center; } textarea, button { width: 300px; margin-bottom: 20px; padding: 10px; font-size: 1em; border: none; border-radius: 5px; } textarea { height: 100px; resize: none; } button { color: #fff; background-color: #007BFF; cursor: pointer; transition: background-color 0.3s ease; } button:hover { background-color: #0056b3; } .result { font-size: 1.5em; }