Make a website easier to use with semantic HTML, visible focus, clear labels, and sufficient contrast.
The core idea
Accessibility improves the experience for people using keyboards, screen readers, magnification, or different input methods. Semantic HTML gives controls meaningful behavior and structure without requiring custom JavaScript for everything.
A practical way to approach it
Use real buttons for actions and links for navigation, label form controls, maintain a logical heading order, provide visible focus styles, and test keyboard navigation. Check contrast and write useful alternative text for informative images.
Try it in a small project
Navigate your site without a mouse. Try the search form, menu, editor, and modal dialogs using Tab, Shift+Tab, Enter, and Escape. Fix the first confusing focus jump you encounter.
Common mistakes to avoid
Automated checkers catch only part of the problem. Test real tasks with keyboard-only navigation and do not use color as the only signal.
Key takeaway
Keep the first version small, make your assumptions explicit, and verify the result with a repeatable test. For production use, check the current official documentation for the tools and versions you choose.