display:none vs visibility:hidden vs text-indent:9999 How screen reader behave with each one?

Question

What is the difference between these three for screen reader users?

Answer 1

There's a very good summary of how screen readers interpret these properties at WebAIM.

In a nutshell, visibility: hidden and display:none will hide text from screen readers just like it does from others. All other methods will be 'visible' to a screen reader.