Licence, credits and author

Licence

Frontend Skills is free and open source under the MIT licence: you may use, copy, change and share it, also in commercial work, as long as the licence notice stays with it.

Author

Made by Dawid Olko as a personal open-source project. More about him at dawidolko.pl; the code is at github.com/dawidolko.

Credits

This site uses:

• Open Sans by the Open Sans Project Authors, under the SIL Open Font License 1.1, served from this site.
• The accessibility panel from dawidolko.pl, the same one as on the author's other sites, MIT.

The standards behind the rules

Every rule links its sources. The rules are written in our own words; the sources are:

• W3C Web Accessibility Initiative: WCAG 2.2 and Understanding WCAG
• WAI-ARIA Authoring Practices Guide
• WHATWG HTML Living Standard
• MDN Web Docs
• web.dev and Chrome for Developers
• W3Schools style guides for HTML and JavaScript
• The documentation of each framework the skills cover

About this site

Plain HTML built by a small Node.js script from the skills and rules in the repository, one stylesheet and two small scripts (this page's copy and search helpers, and the accessibility panel). No cookies, no analytics, no requests to other sites. The panel stores your reader settings in this browser's local storage, on your device only.

Accessibility of this site

The site is built to WCAG 2.2 AA as a target: it works with a keyboard and a screen reader, follows your light or dark preference and reduced motion, and reflows down to 320 pixels. If something stands in your way, please open an issue.