Of course not lol. The CMS I usually use stores it as HTML in the database, so I have a go-to HTML sanitization plugin with a tag whitelist. I wish it used markdown or something similar under the hood instead, but it is what it is.

You’d save it to the database in the same field as the rest of the text. You don’t store the positions or anything like that - you’d store the text with HTML and have the front end render it as expected.

For instance, the database could have the following text:

Hello <strong>World</strong>

And the front end just renders HTML.

Alternatively, you could store Markdown syntax if you’re hesitant to allow HTML.

EDIT: as always, if you store raw HTML, don’t forget to sanitize it.