Plan step 36 ("Interaction is the shared classes", the user, 2026-09-14).
The dismiss button hand-rolled md-state-layer, md-focus-ring and
md-touch-target, and alert.css's own header said so; it now renders the
classes and keeps only its own size, offset and colour.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Qwx5USif3wFFmxtHg5U1g9