This article should have given you a useful high-level overview of accessibility, shown you why it's important, and looked at how you can fit it into your workflow. You should now also have a thirst to learn about the implementation details that can make sites accessible, and we'll start on that in the next section, looking at why HTML is a good basis for accessibility....operating system, like VoiceOver (macOS, iPadOS, iOS), Narrator (Windows)...MSAA/IAccessible, UIAExpress, IAccessible2 macOS: NSAccessibility Linux: AT-SPI...