These are the languages, libraries and frameworks I've learned and used so far:
DOM (Document Object Model), semantic tags, IDs and classes, tables, forms, audio/video embeds.
Selectors (element, type, attribute), properties, pseudo-classes, media queries and responsive design, animation and transitions.
Variables, strings, booleans, arrays and objects, methods and functions, conditions, loops, DOM manipulation, AJAX, object-oriented programming.
Selectors, effects, events, event handlers, DOM traversing, plug-ins.
The grid and all its components.
Node-based toolkit to automate many website building tasks.
Basic Git workflow tasks: git add, git commit, git push, git pull, branching, merging, working with Github.
Static Site Generators
Set up and deployment, themes, plug-ins. I'm not a big fan of Wordpress for small sites and personal blogs. I like to use static site generators instead.
Node and Express
Create a server and deploy simple dynamic sites using templating engines and routes.
VPS (virtual private servers)
Server set up, virtual hosts, domain management, website deployment. I'm currently using a Digital Ocean VPS (referral link).
Basic Linux-style commands to navigate through directories, create and copy files, interact with Git, and communicate with a VPS.