Functionality is lost at 200% zoom
The page MUST be readable and functional when browser zoom is set to 200% of its initial size.
People who have low vision may not be able to read text at its default size. Browsers allow people to zoom the page, but sometimes the text is cut off or functionality is obscured as the page is zoomed. Content must be flexible enough to be scaled to 200% by the browser without having text cut off or functionality lost. When text is able to be scaled up to 200% by the browser, more people with mild visual disabilities will be able to read it without requiring the use of assistive technology such as a screen magnifier.
Fix this issue by ensuring that when the page is zoomed to 200% functionality is not hidden or obscured by the resizing of text containers or other content, and that no functionality is removed from the page.