React Js Generate Random String

<!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;
    function App() {
      const [randomHexString, setRandomHexString] = useState('');
      const [inputLength, setInputLength] = useState(12); // Default length is set to 8

const generateRandomHexString = (length) => {
        const characters = '0123456789ABCDEF';
        let result = '';

for (let i = 0; i < length; i++) {
          const randomIndex = Math.floor(Math.random() * characters.length);
          result += characters.charAt(randomIndex);
        }

return result;
      };

const handleInputChange = (event) => {
        setInputLength(event.target.value);
      };

const handleGenerateRandomString = () => {
        const newRandomHexString = generateRandomHexString(inputLength);
        setRandomHexString(newRandomHexString);
      };

return (
        <div className='container'>
          <h2 className='title'>React Js Random Hexadecimal String:</h2>
          <input
            type="number"
            className='input'
            value={inputLength}
            onChange={handleInputChange}
            min="1"
            placeholder="Enter length"
          />
          <button className='button' onClick={handleGenerateRandomString}>Generate Random String</button>
          <p className='result'>{randomHexString}</p>
        </div>

);
    }
    ReactDOM.render(<App />, document.getElementById("app"));
  </script>

.container {
      margin: 0 auto;
      width: 600px;
      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);
      padding: 20px;
    }

.title {
      font-size: 24px;
      margin-bottom: 20px;
      color: #333;
    }
    .input {
      padding: 10px;
      font-size: 16px;
      border: 1px solid #ccc;
      border-radius: 5px;
      margin-bottom: 10px;
      width: 100%;
    }
    .input:focus {
      outline: none;
      border-color: #007bff;
      box-shadow: 0 0 5px rgba(0, 123, 255, 0.5);
    }

.button {
      background-color: #007bff;
      color: white;
      border: none;
      padding: 10px 20px;
      font-size: 16px;
      border-radius: 5px;
      cursor: pointer;
    }

.button:hover {
      background-color: #0056b3;
    }

.result{
      font-size: 18px;
      margin-top: 20px;
      color: #333;
    }
  </style>
</body>

</html>