While I found this article to be both thorough and interesting, one person’s delightful experience can drive another person away from the site. The first principle of motion on web sites should be that there need to be a way to turn it off. It confuses screen readers (used by people who can’t read for a number of reasons, including vision loss, developmental delays or dyslexia), and distracts people with attention deficit disorder from accomplishing the tasks they came to the website to do. For some people it actually triggers motion sickness. I wouldn’t expect someone to come back to your site if it makes them feel like they are going to puke. If you deploy automatic motion that lasts for more than 5 seconds and your company comes under the Americans with Disabilities Act, you are literally asking to get sued if you don’t include the ability to stop the motion. Please see https://www.w3.org/TR/UNDERSTANDING-WCAG20/time-limits-pause.html

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Accessibility Architect @ VMware. W3C Silver, ITI & IAAP GLC committees. Degrees in CS, law, business. Wheelchair user w/ a deaf daughter.

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