-WAI-ARIA (role, aria-labelledby) Accessibility Web applications (blind, etc)

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• 2. Why do we need Aria?

2. Why do we need Aria?

How many other questions can I ask before answering the title question?

1. How can blind users know that the current browsing area is the main navigation of the website?
2. If a blind user knows that a dialog box is displayed after clicking a button?
3. How can blind users know that the text in another area of the page has changed after clicking a button?
4. How to let blind users know that you are usingLiLabels are used to simulate the standardSelectControls?
5. How can blind users know whether the select control you simulate is a single choice or multiple choices?

Can you solve the above problems within your existing knowledge scope? Some people may say that I use HTML5. well, indeed, the emergence of HTML5 greatly enhances the accessibility and accessibility of web pages. However, it is not omnipotent, for example, blind people cannot know the type of the simulated control.

Therefore, Aria is required.

 

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