Throughout the environment screen reader specific content is placed off-screen with the CSS class "skip". This is used in many different scenarios, such as <label> elements for input fields, informative text placed in <span> elements, and skip-links used to jump to the main content. All of these elements are positioned off-screen with this "skip" CSS class, however the class itself utilizes the CSS display:none property. This not only hides the content off-screen, but it also hides it from assistive technology. As such, screen reader users never interact with this content.Developers must ensure that screen reader specific content placed off-screen remains exposed to assistive technologies. In order to ensure that this content remains exposed, the CSS display:none property must not be utilized.
http://qa03-sakai.marist.edu:8080/portal/site/e72d72d4-f582-4dce-8261-6b923060787c/tool/eb0fda06-aa37-4f6a-9e75-3ea5c66a5ee4#A208fc018be48a6a423fbe24e91b637e-HTMLHere is additional guidence for invisible content http://webaim.org/techniques/css/invisiblecontent/Many examples of the "skip" class suggest that the should be placed off-screen as opposed to not read.
The label a11y:invisiblecontent has been added to track the larger scope of this issue.