css-full-bleed-layout

Full-bleed layouts with container queries let background content extend edge-to-edge while inner content stays centered. Use `container-type` to establish a query context and `cqw` units to size elements relative to the container, enabling responsive layouts that adapt to available space without media queries.

Full-bleed layouts separate background width from content width, letting you layer full-width backgrounds behind constrained content. Container queries offer more granular control than media queries by responding to container size rather than viewport, making layouts reusable across different contexts.

Container queries work in all modern browsers (Chrome 105+, Firefox 111+, Safari 16+). They're ideal for full-bleed layouts because they let you query the container width directly, triggering layout shifts based on available space without viewport-dependent breakpoints.

Set `container-type: inline-size` on a parent, use `max-width` to constrain content, apply `margin: 0 auto` for centering, and place full-width elements as siblings or with `width: 100vw`. This foundation works with container queries to handle responsive adjustments cleanly.

Container queries require explicit container setup and don't trigger on all property changes—only width and height by default. Older browsers need fallbacks, and complex nested containers can create unexpected query scope issues. Performance is generally solid for typical use cases.