container-queries-implementation

Implement container-aware UI components using @container queries and container-relative units.

2|Updated Mar 21, 2026
One-click install
npx skills add https://github.com/coastdigitalgroup/coastai-skills --skill container-queries-implementation
Or copy as Structured Prompt for Agent
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Skill: container-queries-implementation
Source: https://github.com/coastdigitalgroup/coastai-skills/tree/main/website-development/container-queries-implementation
Command: npx skills add https://github.com/coastdigitalgroup/coastai-skills --skill container-queries-implementation

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

Container Queries Implementation enables truly modular UI components by letting them react to their parent container's size rather than the viewport, ensuring layout stability across contexts.

Core Features & Use Cases

  • Provides a structured approach to define container boundaries with container-type and container-name.
  • Demonstrates practical patterns for responsive component layouts using @container rules and container-relative units.
  • Use Case: design a card component that switches from vertical to horizontal based on its container's width, whether in a sidebar or main content area.

Quick Start

Create a container wrapper with container-type and container-name, then add @container rules to switch layout based on the container width.

Frequently Asked Questions about container-queries-implementation

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I make a CSS component adapt to its parent container size instead of the viewport?

Use container queries to enable container-aware UI components that react to their parent container's size. Define a container wrapper with container-type and container-name, then apply @container rules to switch component layouts based on the available container width.

What's the difference between media queries and container queries for responsive design?

Media queries adapt layouts to the viewport size, while container queries let modular UI components adapt to their parent container's size. Container queries ensure layout stability across varying contexts like sidebars, cards, and grid regions where component space changes independently of the viewport.

How do I use container-type and container-name to set up a container query?

Set up container queries by applying the container-type property to define a container boundary and container-name to label it. Then write @container rules using container-relative units to style child components responsively based on that specific container's dimensions.

Do container queries work with older browsers that don't support them?

Container queries implementations provide fallbacks for non-supporting browsers. You can apply default styles that work without container query support, then use @container rules to enhance the layout progressively in browsers that recognize container-type and container-name definitions.

Can I design a card component that switches from vertical to horizontal layout based on its container?

Yes, container queries allow a card component to switch from vertical to horizontal based on its container's width. By defining the parent wrapper as a container and using @container rules, the card layout adapts whether it is placed in a narrow sidebar or a wide main content area.

When should I use container queries instead of media queries in a design system?

Use container queries in design systems and UI libraries where components appear in multiple contexts with varying space, such as sidebars, cards, and grid regions. Container queries let components adapt to their parent container size, ensuring layout stability where viewport-based media queries fall short.