Before you start a new guide, plan to make it accessible to the widest range of web users from the beginning. It's more difficult to retroactively make content accessible, especially documents, videos, tutorials and interactive content.
All web content must comply with Web Accessibility guidelines, WCAG 2.2 at the AA standard.
You will need to know the basics of web accessibility. The guidance below will help make sure that content you generate is compliant. Use the checklist to make sure you have considered everything.
Web accessibility is based on the four POUR principles: All web content needs to be Perceivable, Operable, Understandable and Robust. You must consider that the following people can fully access, interact with and understand your content.
Ten things to check before you publish your page. A quick and easy way to do an automated check for some of these issues is by using the WAVE accessibility checker, although manual checks and testing with Assistive technologies is also important.
For blind or visually impaired users - images need meaningful descriptions unless they are decorative or already described in the text. Alt text, how to use and write it.
Video and audio need to have closed captions and / or a transcript to describe what is being said or is happening happening on screen to D/deaf users, users with hearing loss and blind or partially sighted users. Accessible video and audio.
Use headings and lists to break up text and help screenreader users get an idea of the content on the page and how it is structured. Headings should be meaningful and use a logical hierarchical order. Lists must use the built-in styles. Headings and lists, how to use them.
Links should use meaningful link text which tells a user where they will be taken. Meaningful link text.
Text and Buttons should have good colour contrast from the background. Read more about colour contrast.
If you have a colour key, make sure you also use text labeling or another means of communicating the meaning.
Can you access everything on the page and operate it (open links and buttons) using just the keyboard? How to test with a keyboard.
Use icons and labelling consistently. Icons and how to use them.
Avoid using tables for laying out information. Using a header or column row and a caption will help screen reader users navigate the information. Create accessible tables.
Avoid relying on non-HTML content. Ensure that any documents you upload or link to have been checked for accessibility and have correct tagging, headings, alt text, meaningful links, accessible tables and good colour contrast. Create Accessible Documents.