React Js Generate random Color

<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/react/17.0.2/umd/react.development.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/17.0.2/umd/react-dom.development.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/babel-standalone/6.26.0/babel.min.js"></script>
</head>
<body>
    <div id="app"></div>
    <script type="text/babel">
        const { useState } = React;

const App = () => {
            const [randomColor, setRandomColor] = useState('#000000');

const generateRandomColor = () => {
                const color = `#${Math.floor(Math.random() * 16777215).toString(16)}`;
                setRandomColor(color);
            };

return (
                <div className='container'>
                    <h3>React Js Generate random Color</h3>

<div
                        style={{
                            backgroundColor: randomColor,
                            width: '100px',
                            height: '100px',
                        }}
                    ></div>
                    <p>Random color: {randomColor}</p>
                    <button onClick={generateRandomColor}>Generate Random Color</button>
                </div>
            );
        }

ReactDOM.render(<App />, document.getElementById('app'));
    </script>
    <style>
        .container {
            text-align: center;
            box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.12), 0 2px 4px 0 rgba(0, 0, 0, 0.24);
            width: 600px;
            margin: 0 auto;
            padding: 20px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
        }

h3 {
            color: #333;
            margin-bottom: 20px;
        }

p {
            font-size: 18px;
            color: #555;
        }

button {
            padding: 10px 20px;
            font-size: 16px;
            color: #fff;
            background-color: #007bff;
            border: none;
            border-radius: 4px;
            cursor: pointer;
        }

button:hover {
            background-color: #0056b3;
        }
    </style>
</body>

</html>