React Js Disable Text Selection

<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8" />
    <script src="https://unpkg.com/react@17.0.2/umd/react.development.js"></script>
    <script src="https://unpkg.com/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">
        function App() {
            return (
                <div className='container'>
                    <h3>React Js Disable Text Selection</h3>
                    <div className="disable-select">
                        This text cannot be selected.
                    </div>
                </div>
            );
        }
       ReactDOM.render(<App />, document.getElementById("app"));
    </script>
    <style>
        .disable-select {
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 1rem;
            background-color: #f2f2f2;
            border-radius: 8px;
            user-select: none;
            cursor: default;
        }

.container {
            width: 600px;
            margin: 0 auto;
            box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.12), 0 2px 4px 0 rgba(0, 0, 0, 0.24);
            padding: 20px;
            text-align: center
        }

h3 {
            font-size: 1.5rem;
            margin-bottom: 1rem;
        }
    </style>

</body>

</html>