Content should reflow in a width of 320 CSS pixels (vertical scrolling) or 256 CSS pixels (horizontal scrolling) when scaled up to 400% User interface components and any non-decorative color separations must have a contrast of at least 3:1. Minimum Text Spacing: The line height is 1.5 times the font size. Paragraph spacing is 2x the font size Letter spacing is 0.12x font size Word spacing is 0.16 times the font size. If a given language or script does not support one of these spacing options, it is exempt from that option for accessibility purposes.
When content appears on hover or keyboard: There should be a way to dismiss content without changing focus. The content should not disappear as long as the pointer or focus remains on it. Content should not disappear unless the user triggers it (i.e. changing focus or dismissing the content) or the information becomes invalid. There are several ways to access a web page within a set of other web pages, unless that page is a step in a process. All titles and tags describe the topic or purpose of the content underneath. The keyboard focus indicator should still be visible, if present.
The language of a passage of text is marked programmatically. Exceptions may be made for names, technical jargon and reasonable vernacular. Navigation elements should share the same design, location, and purpose across all web pages. Input errors are automatically detected and suggestions are made on how to resolve them. If a web page results in a legal commitment, results in a financial transaction, or submits test answers, it must include at least one of the following characteristics: The submission is reversible. The website checks for data omissions and errors and offers the user the opportunity to correct them.