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I was checking out Chris’ new article : CSS-Tricks Chronicle XIV
and went through the codepen for the format of article and noticed he used rel for his code pre header and used the property markup=”tt” I’ve never heard of markup before, can someone shed some light?
its also not used in the css.i find that kinda weird I’d love to know more.
I think it has to do with the syntax highlighter he uses on WordPress.