Is presence of aria-hidden sufficient or is value set to “true” required (aria-hidden=“true”)
The html "hidden" attribute is a boolean and does NOT need a value set. It's mere presence is sufficient. What about the "aria-hidden" attribute? Is it's mere presence sufficient? Or does it require the value "true" to be set? aria-hidden must have a value of true|false. Note, however, that aria-hidden is not needed if you are using the hidden attribute or if you are using CSS visibility:none or display:hidden . All three of these latter three ways to hide will also hide the element from a screen reader. You only need aria-hidden="true" if there's something on the display that you want to hide