Learning objective
Explain websites and applications, reproduce the worked example and justify a decision in the case study.
Before you begin
Code and logic
Understand
Interfaces connect structure, style, behavior, accessibility, and data.
Worked example
A button should be readable, keyboard-usable, and clear about its action.
Analysis and common mistakes
HTML supplies structure, CSS presentation and JavaScript behaviour. Native elements such as button and label provide accessibility foundations. Layout should support narrow screens, zoom and keyboard use.
Case study — reasoning
A control works by mouse but not Tab and Enter. Use a real button, check visible focus and announce results; a clickable region without semantics remains difficult to use.
Knowledge check
Summary
Interfaces connect structure, style, behavior, accessibility, and data.
Sources for further study and verification
AI-assisted draft · Educator review not completed · Unofficial supplementary resource