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- Hidden frames should also be hidden from assistive technologies using aria-hidden="true".
Other (content)
Required
- Critical Important strikethrough text MUST must be supplemented with a text-based method to convey the meaning of the strikethrough.Critical text
- designated for insertion MUST Important insertion text must be supplemented with a text-based method to convey the meaning of the insertion.
Non-required / best practice
- <blockquote> should be used for long (block level) quotations. It shouldn't be used for visual styling alone (non-quotes).
- Code should be marked with the <code> element and styled to look different from non-code text. Blocks of code should use the <pre> element for formatting.
- Strikethrough text should use the <del> element.
- Insertion text should use the <ins> element.
- Highlighted text should use the <mark> element.
- Important highlighted text should have a text-based way of conveying the importance of the text.