How to create locally editable content like in MDN?

[Snippet]

This is what I meant:

I need a way that works without internet on a local Wordpress installation, hence can’t really just embed a codepen.

[StephanDue]

Have you ever looked for a plugin for wordpress? There are several plugins for codesnippets. You can install the plugin in the local wordpress environment.

https://wordpress.org/plugins/search/code/

[Snippet]

You know a code highlight plugin is not remotely near to what I’m after… and yes I have already looked for a plugin that actually has a code sandbox, where I can live edit the code and haven’t found it, but most likely is because I’m not searching for the right keywords, hence I’m asking here.

[ilenia]

it should be an in-browser editor, like the one that has freecodecamp - freeCodeCamp uses monaco editor

[Snippet]

Thanks! Well I keep searching but cant find something like an embed codepen but local /with no internet. I did find monaco but seems to be different.