This is an HTML and CSS course for the Swiftener HTML / CSS Playground. Three panes: HTML, CSS, and JS. The preview updates live — no Ctrl+Enter. JavaScript-only work belongs in Introduction to JavaScript. Maps belong in Learn Leaflet.
Goal
Finish every chapter by pasting into the matching pane. The last chapter is a kiosk poster you can reuse.
How to take the course
- Keep this tutorial tab and the HTML / CSS Playground side by side.
- Each exercise says which pane to paste into (HTML, CSS, or JS).
- The preview on the right updates as you type.
What this playground can and cannot do
- Can: HTML, CSS, a little JavaScript, live preview, optional libraries, local drafts.
- Cannot: a public URL for your page, or fetching remote images in these lessons. Use CSS color blocks instead of
httpimages.