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Consistency in the interface and information design means people can learn how to use your site and apply what they know across all the pages of your site.

There are a number of ways to zoom web-page content in to enlarge text without needing to provide explicit controls to do so. To avoid diminishing this variety of user control, you have to be careful how you code font sizes.

Headings are used to group and label sections of content, giving visual structure to the page and providing a means of navigation to screen reader users.

When you include a list in your page content, this relationship needs to be conveyed visually, and it also needs to be conveyed to people using screen readers.

Headings are important orientation aids, and they help people quickly identify the content on your page. When headings are correctly identified, they also allow screen reader users to quickly navigate from heading to heading.

Adding structure to web content makes it more readable and comprehensible to everyone and especially to people with a visual or cognitive impairment that makes reading on-screen content difficult.

Avoid referring to a button, menu, or other item in the page only by its position on the page; instead, use additional information that describes the content.

Color is a powerful visual means of presenting or distinguishing information, but when you use color to identify or distinguish information, make sure that this information is still available to people who can't perceive color.

Some people understand complex information best when it's presented visually, such as as a chart or diagram, while others find that reading the information suits them better.

Color-contrast-checking tools can compare two colors and report on the contrast ratio between them. Some tools will allow you to adjust these values until the ratio is sufficient, helping you to choose a color scheme that avoids contrast problems.

People with disabilities rely on interface controls that are used programmatically. These controls have a visual label, as well as a programmatic label, known as its Accessible Name.

Placement of controls affects their ease of use.