React Js Convert Celsius to Fahrenheit or Fahrenheit to Celsius

<!DOCTYPE html>
<html>

<body>
    <div id="app"></div>
    <script type="text/babel">
        const { useState } = React;

function App() {
            const [fahrenheit, setFahrenheit] = useState('');
            const [celsius, setCelsius] = useState('');

const handleInputChange = (event) => {
                const inputValue = event.target.value;
                setFahrenheit(inputValue);
                const convertedValue = (inputValue - 32) * (5 / 9);
                setCelsius(convertedValue.toFixed(2));
            };

return (
                <div className="container">
                    <h3>React Js Convert Fahrenheit to Celsius</h3>
                    <label htmlFor="fahrenheit-input">
                        Fahrenheit:
                        <input
                            type="number"
                            id="fahrenheit-input"
                            className="input"
                            value={fahrenheit}
                            onChange={handleInputChange}
                        />
                    </label>
                    <br />
                    <label htmlFor="celsius-input">
                        Celsius:
                        <input
                            type="number"
                            id="celsius-input"
                            className="input"
                            value={celsius}
                            readOnly
                        />
                    </label>
                </div>

);
        }

ReactDOM.render(<App />, document.getElementById("app"));
    </script>
    <style>
        .container {
            text-align: center;
            margin: 0 auto;
            width: 700px;
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
            display: flex;
            flex-direction: column;
            align-items: center;
        }

.input {
            margin-top: 5px;
            padding: 8px;
            border: 1px solid #ccc;
            border-radius: 3px;
            font-size: 16px;
        }

.input:focus {
            outline: none;
            border-color: #007bff;
            box-shadow: 0 0 5px #007bff;
        }
    </style>
</body>

</html>

 
<!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://unpkg.com/@babel/standalone@7.14.7/babel.min.js"></script>
</head>
​
<body>
    <div id="app"></div>
    <script type="text/babel">
        const { useState } = React;
​
        function App() {
            const [fahrenheit, setFahrenheit] = useState('');
            const [celsius, setCelsius] = useState('');
​
            const handleInputChange = (event) => {
                const inputValue = event.target.value;
                setFahrenheit(inputValue);
                const convertedValue = (inputValue - 32) * (5 / 9);
                setCelsius(convertedValue.toFixed(2));
            };
​
            return (
                <div className="container">
                    <h3>React Js Convert Fahrenheit to Celsius</h3>
                    <label htmlFor="fahrenheit-input">
                        Fahrenheit:
                        <input
                            type="number"
                            id="fahrenheit-input"
                            className="input"
                            value={fahrenheit}
                            onChange={handleInputChange}
                        />
                    </label>
                    <br />
                    <label htmlFor="celsius-input">
                        Celsius:
                        <input
                            type="number"
                            id="celsius-input"
                            className="input"
                            value={celsius}
                            readOnly
                        />
                    </label>
                </div>
​
            );
        }
​
        ReactDOM.render(<App />, document.getElementById("app"));
    </script>
    <style>
        .container {
            text-align: center;
            margin: 0 auto;
            width: 700px;
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
            display: flex;
            flex-direction: column;
            align-items: center;
        }
​
​
        .input {
            margin-top: 5px;
            padding: 8px;
            border: 1px solid #ccc;
            border-radius: 3px;
            font-size: 16px;
        }
​
        .input:focus {
            outline: none;
            border-color: #007bff;
            box-shadow: 0 0 5px #007bff;
        }
    </style>
</body>
​
</html>