CSS Basics:
- Rewrite lessons 3-10 with real UI components (coffee shop, dashboard, buttons)
- Remove artificial examples with dashed borders
- Students write full selectors when learning selector syntax
- Use codePrefix only when focus is on property concepts
Typography:
- Replace Georgia font with universal monospace for code examples
- Use system-ui throughout for consistent rendering
- Replace text-shadow with text-transform and letter-spacing
- Add rich descriptions explaining the "why" behind each property
- Replace single quotes with <kbd> tags in validation messages
- German and English lessons updated for consistent formatting
- Move task instruction before description in UI (index.html)