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:

• Do use high contrast and color-blind friendly color schemes.
• Do provide alt text and a caption for most images.
• Do provide a text description of any charts or diagrams.
• Do nest section headings sequentially.
• Do create correctly structured tables.
• Do encase non-English words or phrases in {{lang}}.
• Do ask any accessibility-related questions at WikiProject Accessibility's talk page.

DON’T:

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

See also

1. 
2. Collaborations
3. WikiProjects
4. Accessibility

• Simple rule set
• Simple style manual
• Style tips