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HTML
Semantic structure, forms, headings, ARIA, buttons vs links, and native-first delivery.
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CSS
LSCSS methodology, architecture, variables, layers, scope, and maintainable styling systems.
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JavaScript
Progressive enhancement, native behaviour, modules, readability, testing, and performance-aware code.
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Accessibility
Keyboard access, focus, screen readers, reduced motion, forms, and accessibility by default.
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Performance
Page weight, Core Web Vitals, images, fonts, JavaScript budgets, and third-party risk.
Standards
Shared rules for how teams build HTML, CSS, JavaScript, accessibility, and performance consistently.