Feature: Add custom stylesheets for the code block

[tio-trom]

In markdown you can choose the code type such as PHP, CSS, HTML; and so forth. Would be a super cool idea to support this for the code block. A simple drop down in one of the corners of the code block and maybe an autodetect feature. Would help a lot! Cheers!

[JaspalSuri]

Thanks for the suggestion, @TROMsite. 🙂