- Paste or drop your full HTML in the left panel → Load into Preview.
- Click any element in the preview to select it and edit in the Inspector.
- Use Find .class to jump through elements by class name.
- Copy Updated Code or Download .html to export all changes.
Undo with ⌘/Ctrl + Z. We only touch the properties you changed—background color stays as-is unless you explicitly change the BG field.