Wikipedia:Accessibility dos and don'ts

All users, regardless of disability, should be able to read, navigate, and contribute to Wikipedia easily. Therefore, when editing articles:

DO:

 * Green check.png Use high contrast and color-blind friendly color schemes.
 * Green check.png Provide alt text and a caption for most images.
 * Green check.png Provide a text description of any charts or diagrams.
 * Green check.png Nest section headings sequentially.
 * Green check.png Create correctly structured tables.
 * Green check.png Wrap non-English words or phrases in lang or transliteration.
 * Green check.png Ask any accessibility-related questions at WikiProject Accessibility's talk page.

DON'T:

 * Red x.svg Don't impede the ability to  distinguish links from regular text.
 * Red x.svg Don't use scrolling lists or collapsible sections to conceal content. (See exceptions in the Manual of Style).
 * Red x.svg Don't use color as the only means of conveying information.
 * Red x.svg Don't use tables for layout—use  blocks instead.
 * Red x.svg Don't leave blank lines between list items.
 * Red x.svg Don't use Unicode characters as icons or images.
 * Red x.svg Don't sandwich text between two images, and don't use fixed image sizes unless absolutely necessary.