Browser check (headless Chromium, 2026-11-10) found the dings page scrolling
to 846px and the playground to 381px at a 360px viewport, and the trial's
Next button staying disabled until both sounds are played while the hint
did not say so. Tables scroll inside themselves on narrow screens, the
playground select and labels may shrink, and the hint says to play both.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>