modern-css-vanilla

Container queries enable responsive component layouts by adapting styling based on a parent container's dimensions rather than the viewport. This skill applies container queries to craft components like adaptive cards that resize dynamically within their specific containers.

Cascade layers manage CSS specificity by defining an explicit cascade order using the @layer rule. This approach ensures predictable style overrides and scalable theming across web projects, preventing unintended specificity conflicts as design systems grow.

The :has(), :is(), and :where() selectors improve modern CSS by enabling expressive parent and sibling selections with controlled specificity. They allow developers to style elements based on descendant or subsequent states without requiring extra JavaScript classes.

CSS variables enable scalable theming by acting as design tokens that centralize layout and color values. This skill provides clear guidance on managing these variables to maintain consistent, adaptable themes across complex web projects.

Yes, this approach builds responsive grids without frameworks by utilizing native modern CSS features. It leverages container queries and advanced selectors to create scalable, future-proof layouts directly in vanilla CSS.

Cascade layers handle third-party CSS overrides by assigning external styles to lower-priority layers, ensuring your custom @layer rules maintain higher specificity. This keeps component styling predictable and maintainable without resorting to heavy specificity hacks.