INTERFACE ENGINEERING
Interactive UI Components & Web App Builder
A profile dialog opens with a click, but focus stays behind it. Try Escape, inspect the markup, then repair the modal and verify keyboard behavior.
Concept, hints and extension
Source editor
Ctrl or Command + Enter applies the editor. Apply reloads the isolated preview.
Live preview
DOM anatomy, state and computed styles
Event log
Explain and reflect
Pass the component’s checks and explain what they prove. Keyboard testing in your browser is still part of the review.
AI prompt studio
Learning library
Visual app builder
Drag a block to change its order, or use its Move up and Move down buttons. Set headings and event announcements, then generate readable source and test the layout.
Portfolio & export
Weekly UI challenge
Verified components
Saved source versions
Practice building accessible web interfaces
Edit real components, verify focus and keyboard behavior, and assemble responsive pages.
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