From: http://mcdlr.com/ See it live at: http://mcdlr.com/wai-aria-cheatsheet/ What started as a simple WAI-ARIA Landmark Roles Cheatsheet turned out to be a full-blown article about the subject. Since I had the different elements of the page done, I figured “Why not fill them with content, then?” and that is what I did. Also, it appears that to date there was no other WAI-ARIA Cheatsheet, so this will prove useful to developers. Hope it does!