PTLam Visualization with HTML

Create or revise one portable HTML explainer that lets a learner see and, when useful, manipulate a system. The artifact uses native HTML, CSS, JavaScript, and inline SVG. It opens directly, with no framework, build step, CDN, web server, sibling file, or external runtime asset.

This skill builds focused learning artifacts. App-shell navigation, pickers, floating actions, menus, dialogs, and sheets belong to a general application or site workflow instead.

Required skills

ptlam-explaining

Reason: Supplies the verified explanation the artifact renders, including its optional analogy branch.