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Organize tokens, layers, components, states, and utilities into a stylesheet that teams can safely evolve.
Create two-dimensional layouts with explicit tracks, auto placement, and resilient minimums.
Understand the role of CSS and connect a stylesheet to a meaningful HTML document.
Compose resilient surfaces with layered backgrounds, images, borders, radii, and contrast-aware decoration.
Predict which declaration wins instead of fighting the cascade with increasingly strong selectors.
Build one-dimensional layouts with deliberate wrapping, alignment, and flexible sizing.
Style links and controls across hover, focus, active, checked, disabled, and generated decorative parts.
Style visible focus, reduced-motion alternatives, robust states, and accessible contrast.
Use normal document flow first, then choose display and positioning intentionally.
Diagnose clipping, scroll containers, containing blocks, and z-index interactions without arbitrary numbers.
Design components for available space, content pressure, zoom, and user preferences.
Target elements with type, class, attribute, and relationship selectors without making rules fragile.
Reason about content, padding, borders, margins, and predictable element sizing.
Add purposeful motion with interpolable properties, stable layout, reduced-motion alternatives, and explicit state changes.
Create readable type scales, line lengths, spacing, and resilient text behavior.
Choose flexible units, useful custom properties, and accessible color values.