React Js Convert Negative Number to Positive Number

<!DOCTYPE html>
<html>

<body>
  <div id="app"></div>
  <script type="text/babel">
    const { useState } = React;
    const App = () => {
      const [numbers, setNumbers] = useState([-1, -5, 3, -10, 7]);

const convertToPositive = () => {
        const positiveNumbers = numbers.map(number => Math.abs(number));
        setNumbers(positiveNumbers);
      }

return (
        <div className='container'>
          <h1>React Js Convert Negative Number to Positive Number</h1>
          <button onClick={convertToPositive}>Convert to Positive</button>
          <ul>
            {numbers.map((number, index) => (
              <li key={index}>{number}</li>
            ))}
          </ul>
        </div>
      );
    }

ReactDOM.render(<App />, document.getElementById('app'));
  </script>
  <style>
    .container {
      border-radius: 8px;
      box-shadow: 0px 2px 4px rgba(0, 0, 0, 0.1);
      padding: 20px;
      margin: 20px auto;
      max-width: 600px;
      text-align: center;
    }

/* Styles for the header */
    h1 {
      font-size: 24px;
      color: #333;
    }

/* Styles for the button */
    button {
      background-color: #0074d9;
      color: #fff;
      border: none;
      padding: 10px 20px;
      margin-top: 10px;
      cursor: pointer;
      border-radius: 5px;
      font-size: 16px;
    }

/* Styles for the button on hover */
    button:hover {
      background-color: #0056b3;
    }

/* Styles for the list */
    ul {
      list-style-type: none;
      padding: 0;
    }

/* Styles for list items */
    li {
      font-size: 18px;
      margin: 5px 0;
      color: #555;
    }

</style>
</body>

</html>