How to optimise final main.css using vite?

@rollin 

1. Minify and compress CSS: Use a CSS minifier tool to compress the CSS code in your main.css file. This will reduce the file size and improve loading times for your website.
2. Use PurgeCSS: If you are using a CSS framework or library like Bootstrap or Tailwind CSS, there may be unused styles in your main.css file. Use PurgeCSS to remove these unused styles and reduce the file size.
3. Optimize images: If your main.css file contains references to images, make sure they are optimized for the web. Use tools like ImageOptim or TinyPNG to compress your images without losing quality.
4. Split CSS into smaller files: Instead of having all your styles in one main.css file, consider splitting them into smaller files based on different sections of your website. This can improve loading times by allowing browsers to download CSS files in parallel.
5. Leverage browser caching: Set the correct cache-control headers for your main.css file to allow browsers to cache the file for a longer period of time. This will reduce the number of HTTP requests and improve loading times for returning visitors.
6. Enable Gzip compression: Enable Gzip compression for your main.css file to further reduce the file size and improve loading times. Most web servers have built-in support for Gzip compression, so check your server configuration or ask your hosting provider for assistance.

By following these tips, you can optimize your final main.css file using Vite and improve the performance of your website.