```
Explanation:
1. We create a simple HTML layout with a header, image container, a file input to select the JPG image, a label to act as a button for file selection, and a button to convert the JPG image to PNG.
2. The CSS styles define the visual appearance of the elements, including colors, font family, border, and padding.
3. The JavaScript code handles the conversion process. When the user selects a JPG image using the file input, we display a preview of the image. When the user clicks the "Convert to PNG" button, we create a canvas, draw the preview image on it, and convert the canvas data to a Blob, which is then downloaded as a PNG file using the FileSaver.js library.
4. The `handleFileSelect` function is triggered when a file is selected through the file input. It reads the selected image and displays it in the preview container.
5. The `convertToPNG` function is called when the "Convert to PNG" button is clicked. It checks if an image is selected, creates a canvas, draws the preview image on the canvas, and converts it to a PNG file using the `canvas.toBlob()` method and then saves it with the `saveAs()` function from the FileSaver.js library.
Now, you have a complete responsive JPG to PNG Converter tool with colorful styling, and it allows users to convert their JPG images to PNG format easily.
