Is it necessary to include alt in images

Question

W3c specifies to use alt for all Images in the website for accessibility. How one can set it for image like bullet in javascript menus or background images or blank images (images used to get design or for general purposes) ?

Answer 1

alt attribute is required for <img> tags if you want your markup to validate. Background images and bullets are just cosmetic, they don't need an alternate representation as they are not part of the content.