/* style.css */ body { margin: 0; font-family: sans-serif; } h1 { color: #333; } button { background-color: #4CAF50; border: none; color: white; padding: 10px 20px; text-align: center; text-decoration: none; display: inline-block; font-size: 16px; cursor: pointer; } button:hover { background-color: #89CFF0; } .container { display: flex; justify-content: center; align-items: center; height: 100vh; } #app { width: 40%; max-width: 500px; background: #f0f0f0; padding: 20px; border-radius: 10px; box-shadow: 0 5px 15px rgba(0,0,0,0.1); }