HTML & CSS
At its heart, HTML is a fairly simple language made up of elements, which can be applied to pieces of text to give them different meaning in a document.
Accessibility is the practice of making your websites usable by as many people as possible.
HTML is used to define the structure and semantics of your content, CSS is used to style it and lay it out.
CSS Grid Layout introduces a two-dimensional grid system to CSS. Grids can be used to lay out major page areas or small user interface elements.
CSS Grid Layout has been designed to work alongside other parts of CSS, as part of a complete system for doing the layout.
Combinators are used to combine CSS selectors to create more complex selectors.
A game to help you learn and practice CSS selectors.
A game for learning CSS flexbox.
A game for learning CSS grid layout.
How it's done now. From the basics to advanced topics with simple, but detailed explanations.
This basic cheat sheet, mostly based on the lessons on freeCodeCamp, tries to provide a basic reference for beginner and advanced developers and lower the entry barrier for newcomers.