Flag CSS display:none;

[mgifford]

Another bit accessibility challenge is the CSS display:none;

http://a11yproject.com/posts/how-to-hide-content/
http://css-tricks.com/places-its-tempting-to-use-display-none-but-dont/

This little piece of CSS hides the content from a screen reader that may need to know it is there semantically.

[mgifford]

isn't that fixed here https://github.com/CSSLint/csslint/wiki/Disallow-outline%3Anone