2. OperableLevel A
2.4.3 Focus Order
초점 순서
Summary
Focus must move in an order that preserves meaning and operability. When the order scrambles, users who cannot see the screen lose track of where they are. Keeping DOM order aligned with visual order is the most reliable fix.
Common failures
- Using positive `tabindex` values, which scrambles focus order across the whole document.
- Opening a modal without moving focus into it, leaving the user tabbing through the page behind.
Corresponding KWCAG 2.2 items
- 6.1.2 Focus Movement and Indication