Marios Kanellopoulos

Joined July 2026

Web developer, accessibility enthusiast, and founder of WAS Lab. Passionate about making accessibility education practical through interactive learning and real-world examples.

142

Points

Startup

7–10

Battle record

Startups

WAS Lab

Education & Reference

Interactive labs and realistic exam preparation for the IAAP Web Accessibility Specialist (WAS) certification.

● Live 7–10

Activity

Commented on WAS Lab19hThank you, Muhammad, much appreciated!Commented on WAS Lab19hGreat questions, Bruno, and that's exactly the reasoning behind it. Yes, the labs cover ARIA widget patterns: tabs, dialog, accordion/disclosure, menu button, combobox/listbox, plus custom controls like switch, slider, spinbutton and toggle buttons. Each scenario shows a broken version next to the fixed one, with the accessibility tree and real VoiceOver output as evidence. On mapping: questions about specific markup or patterns are tagged with the WCAG 2.2 success criteria they test, sometimes more than one, and every A/AA/AAA criterion is covered, including the ones new in 2.2. More general questions on process, governance or standards aren't tied to a single criterion, because they don't map cleanly to one. Questions are also grouped by the three official WAS domains (Creating, Identifying, Remediating).Commented on WAS Lab19hThanks a lot, Artem! Glad the idea resonates. If you give the labs a try, I'd love to hear what you think.

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