W3Schools is the go-to website to start learning any programming language. It's used in college campuses.Codecademy
Another great resource to learn HTML and CSS.HTML.com
Touted as an easy way for beginners to learn HTML and CSS.Learn HTML CSS
A website with an IDE built in, and all code changes are instantly seen, so you get the feedback you need to build your website.Mozilla MDN
An incredibly in-depth website, this is the single website that has every tiny detail to create webpages and style them with CSS.
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