Reformatted from Jared White on his The Spicy Web Discord server:
There are some awesome courses now at web.dev:
- https://web.dev/learn/ - Explore our growing collection of courses on key web design and development subjects. An industry expert has written each course, helped by members of the Chrome team. Follow the modules sequentially, or dip into the topics you most want to learn about.
Also a good JS ref:
- https://htmlreference.io/ - A free guide to all HTML elements and attributes.
- https://cssreference.io/ - CSS Reference is a free visual guide to CSS. It features the most popular properties, and explains them with illustrated and animated examples.
Responsible web design:
- https://responsibleweb.app/ - HTML and CSS Tips and Tricks for creating applications that are both responsive and accessible out of the box