To answer my own question, I just remembered two examples. First, "skip to main content" links that are always visually hidden, even when they have focus. Anoth

To answer my own question, I just remembered two examples. First, "skip to main content" links that are always visually hidden, even when they have focus. Another is one I saw earlier this week, an accordion widget that that was totally keyboard accessible but had no visual indication of focus; fine if a screen reader is explaining everything, really hard to use if you're using your vision. I suppose a blanket issue is the lack of visual indication of focus, especially by overriding the browser's native styling of focused objects. Still, I'm always interested in other examples.