Looking for social medias (like discord / matrix-made stuff / ...) that would accept messages formatted in HTML/CSS stackoverflow

Recent Questions - Web Applications Stack Exchange

as the title suggest, I'm looking for a social media that allows users to send messages formated in HTML/CSS. Possibly having a desktop/smartphone version instead of just a web app.

example of usage:

• sending something like that (in an alternative HTML editor for instance):

<div style="background-color:black;color: white; border-radius: 5px;">
    <p style="padding:5px">hi, this is a picture of a duck</p>
    <img src="https://i.ytimg.com/vi/gAGLWUvobZY/hqdefault.jpg" width="100%">
</div>

would render the message on the screen of the receiver as formatted.

I really don't know where to search such things, I looked on alternativeto.net but didn't found a thing even close to that,

PS: I'm aware that because of the security issues that may come with it and the lack of potential users, this thing might simply not exist, but with all these things being made with electron, I think it's just a matter of time before someone makes it.

Recent Questions - Web Applications Stack Exchange Recent Questions - Web Applications Stack Exchange by Matthieu Jolimaitre via Recent Questions - Web Applications Stack Exchange