If you're looking for a way to showcase source code on your website with highlighted syntax, prismjs.com may be just what you need. It offers a similar style to monokai...
However, I've encountered an issue where the plugin displays my code in a horizontal manner. I prefer my code to have structure, making it easier to read by being displayed on multiple lines rather than concatenated together.
You can view the current display issue here: image
For reference, this is how I would like it to appear: https://i.sstatic.net/c9Dvd.png
Just a heads up - Bootstrap is being used on my website.