W3C standards call for the use of a ‘longdesc’ attribute for images or other possibly inaccessible page elements. The longdesc attribute in a tag links to an HTML file that gives a long description of the inaccessible element. But browser support for longdesc is still somewhat problematic. So many people are now using a workaround that involves putting a ‘d’ after the element. The ‘d’ is made into a link to the long description. This practice is understood by people who need the long description information.