First and foremost, Project IDX is based on Code OSS (the open-source version of Microsoft’s VS Code), meaning the editor should feel all too familiar to many developers.

With 14 million users, Microsoft's open source cross-platform code editor Visual Studio Code is one of its key tools for keeping developers engaged with its future in the cloud.

I have to write a tutorial for c++ class library which will have to be in html. I am looking for wysiwyg html editor that can format c/c++ source code examples in the page.