How to add alt text to background images? Making background images accessible

Question

I have a site that is displaying many of its images as background images using background-size: cover to size them to completely fill the element while cropping off

Answer 1

The W3C provide an exemple for this context, simply provide a role="img" to the div and an aria-label with your description.

More informations here : http://mars.dequecloud.com/demo/ImgRole.htm