Use semantic headings
Keep a logical heading hierarchy and meaningful link labels.
Check keyboard access
Menus, dialogs, forms, and controls should work without a mouse and show visible focus.
Provide alternatives
Use meaningful alt text for informative images and empty alt text for decorative images.
Test contrast and zoom
Ensure contrast is readable and pages remain usable when zoomed.
Further reading
This guide is educational. Check current documentation before making technical or purchasing decisions.