Document headlines, or headings, should be done in a specific order to make sure users with disabilities can navigate your document.
Use both color and style to convey meaning and provide plenty of contrast for readability.
When a lot of information is presented, it is best for accessibility to arrange it in a list type format.
Some users will not be able to see images on your documents. It is important to include descriptive alternate text to provide context.
Use descriptive text for hyperlinks to help users understand relevant information.
Charts and infographics use visuals to convey complex images to users. Since they are images, they provide serious accessibility issues to some users.