React Js Change Font Size | inline Style | Increase

<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/react/17.0.2/umd/react.production.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/17.0.2/umd/react-dom.production.min.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;

// Define the App component
      const App = () => {
        const [fontSize, setFontSize] = useState(16);

// Function to handle font size changes
        const handleFontSizeChange = (event) => {
          const newSize = parseInt(event.target.value, 10); // Parse the input value as an integer
          setFontSize(newSize);
        };

return (
          <div className="container">
            <h3>React Js Change font size dynamically</h3>
            <div className="dynamic-font" style={{ fontSize: `${fontSize}px` }}>
              Text with dynamic font size
            </div>
            <input
              className="font-size-input"
              type="number"
              value={fontSize}
              onChange={handleFontSizeChange}
              min="10" // Set the minimum value allowed
              max="50" // Set the maximum value allowed
            />
          </div>
        );
      };

ReactDOM.render(<App />, document.getElementById("app"));
    </script>
    <style>
      /* Styles for the container */
      .container {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
      }

/* Styles for the font-size-input */
      .font-size-input {
        margin-top: 10px;
        font-size: 16px;
        padding: 8px 12px;
        border-radius: 4px;
        background-color: #fff;
        text-align: center;
        width: 100px;
      }
    </style>
  </body>
</html>

 
<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/react/17.0.2/umd/react.production.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/17.0.2/umd/react-dom.production.min.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;
​
      // Define the App component
      const App = () => {
        const [fontSize, setFontSize] = useState(16);
​
        // Function to handle font size changes
        const handleFontSizeChange = (event) => {
          const newSize = parseInt(event.target.value, 10); // Parse the input value as an integer
          setFontSize(newSize);
        };
​
        return (
          <div className="container">
            <h3>React Js Change font size dynamically</h3>
            <div className="dynamic-font" style={{ fontSize: `${fontSize}px` }}>
              Text with dynamic font size
            </div>
            <input
              className="font-size-input"
              type="number"
              value={fontSize}
              onChange={handleFontSizeChange}
              min="10" // Set the minimum value allowed
              max="50" // Set the maximum value allowed
            />
          </div>
        );
      };
​
      ReactDOM.render(<App />, document.getElementById("app"));
    </script>
    <style>
      /* Styles for the container */
      .container {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
      }
​
      /* Styles for the font-size-input */
      .font-size-input {
        margin-top: 10px;
        font-size: 16px;
        padding: 8px 12px;
        border-radius: 4px;
        background-color: #fff;
        text-align: center;
        width: 100px;
      }
    </style>
  </body>
</html>
​