Going Beyond

General

• Just Starting Out with CSS & HTML
  A collection of CSS Tricks articles targeted at web beginners.
• How to Think Like a Frontend Developer
  A collection of CSS Tricks articles about a variety of front end topics.

More HTML

• A Complete Guide to the Table Element
  Use HTML tables to organize and present data.

More CSS

• When And How To Use CSS Multi-Column Layout
  A guide to using CSS text-columns (not to be confused with grid columns).
• SVG Properties and CSS
  A look at how CSS and SVG interact.
• CSS Gradients
  A roundup of CSS Tricks articles and guides to creating gradients in CSS.
• Take A New Look At CSS Shapes
  An article explaining and exploring the possibilities of CSS Shapes.
• Common CSS Issues for Front End Projects
  A look at a variety of common CSS pitfalls and how to deal with them.

Animation

• Hello, Animation
  A free, interactive course.
• CSS Animation Video Series
  A playlist of CSS Animation tutorials from Coding Artist.
• Web Animation Essentials
  A mid-priced online course by the highly respected Rachel Nabors.

Javascript

• Javascript 30
  A free 30 day javascript course by highly respected Wes Bos.
• MDN Javascript Guides
  A fairly comprehensive set of guides to javascript from Mozilla's developer network.
• Practical Javascript
  A free online javascript course from Watch and Code. Generally well reviewed.
• You Don't Know JS
  A beginners javascript book series available free online. Also includes a link to video courses by the same author.
• Udemy Javascript Courses
  A selection of inexpensive online courses by a number of instructors.
• Eloquent Javascript
  A free online book for javascript beginners.