How is the style of forums, blogs and other articles set?

is like thinking no, I want to know if this kind of article is stored in the database in html language after conversion.

or is it more dependent on default style settings, so refer to whether there is such a default css style for articles and posts.

if you want to make markdown, do you want to monitor the current range of the mouse and so on to insert tags?

Thank you for your advice

Sep.29,2021

this kind of blog is generally saved by markdown .

then there is a special library to parse markdown ,

-sharp

will be parsed to

<h1></h1>

at this point, it's all just simple tags

finally, each website will have corresponding css to beautify these tags

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