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Please add more guidelines on CSS USage and semantic HTML
Is there anything in particular you're after, or should I just flesh out these sections more?
importance of semantics, code HTML (semantic) first and add css(presentation) later. not to code HTML for presentation.
Any HTML CSS design patterns, good practices.
For images as list bullets, I suggest adding them via CSS eg.:
rather than " ". That way when you want to change the bullets, you just change it in the CSS.