Many people — including those using screen readers or with motor disabilities — navigate entirely by keyboard. If your site needs a mouse, it excludes them.
Put your mouse aside. Press Tab to move through the page. You should reach every link, button, and field, see a visible focus outline, and be able to activate everything with Enter or Space.
A keyboard trap is anything you can Tab into but can’t Tab out of — often modals, menus, or embedded widgets. Make sure focus can always move on, and that Escape closes overlays.
A common mistake is hiding the focus outline for looks. Keep a clear, high-contrast focus indicator so keyboard users can see where they are.
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