body { font-family: Arial, sans-serif; margin: 20px; }
input, textarea { padding: 10px; margin: 5px 0; width: 100%; }
button { padding: 10px 20px; background-color: blue; color: white; border: none; border-radius: 5px; cursor: pointer; }
button:hover { background-color: darkblue; }
div { margin-bottom: 15px; }