The Zombie: Hover on a touch screen
Always a Zombie? Yes
Severity: High, if hover imparts information or is required for progress through the site.
Why is it a Zombie: You can’t hover on a touch screen so any user who’s on a phone, tablet. etc cannot access that part of your website.
Cure the Zombie by: Add an alternative way to initiate what happens on hover with a link, button etc.