Web Accessibility WCAG 2.1 Knowledge Base

Web Accessibility and WCAG 2.1 is a relatively new area of expertise for many web developers and webmasters. We’re working to build a comprehensive knowledge base or questions and answers to help solve the unique challenges around building websites with web accessibility in mind.  Browse or search our knowledge base, or submit questions to our team of developers.

Browse by Conformance Level

A

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Browse by Principle/Guideline

Perceivable

Information and user interface components must be presentable to users in ways they can perceive.

Understandable

Information and the operation of user interface must be understandable.

Robust

Content must be robust enough that it can be interpreted reliably by a wide variety of user agents, including assistive technologies.

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Browse Recent Questions & Answers

What is a VPAT?

I've been hearing a lot about website accessibility and something called a VPAT. Can you help me understand what a VPAT is and what it's for?

Minimum font size?

I like the look of smaller text on the web. And even if the text is pretty normal size, some subheadings or small bits of info look nice if they are much smaller (thinking 12px or so). Is there a minimum font size that is...