ade21ee4e0109c70e29860d5393306e48e6a44d3
lrnassar
  Mon Mar 16 16:38:58 2026 -0700
Adding keyboard navigation accessibility to the Genome Browser menu bar and all main CGI pages. Converts non-focusable menu bar span elements to keyboard-accessible buttons using the W3C disclosure navigation pattern, adds aria-expanded state for screen readers, skip navigation link, and main content landmark. Also adds a Keyboard Navigation section to the accessibility page with screenshots. refs #37252

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