CSS examples
The CSS hub gathers stylesheet examples that answer layout and theming questions you can verify by eye. Flexbox and grid arrangements, intrinsic card grids that reflow without media queries, sticky table headers, and colour tokens wired through custom properties for light and dark schemes are all in scope. Each page names the markup the stylesheet expects, shows the rules in a copyable block, and describes the browser behaviour that makes the result hold. Group entries by the task you are solving, compare the boundaries listed in each caveat, and use the relationship links to move from a single rule to a token-driven layout you can maintain across a real site.
6 published examples in 2 taskgroups. Hub pages list every Example in exactly one task group.
Build a responsive layout
4 examplesArrange boxes so the design holds across viewport widths, zoom levels, and content growth.
Build a card grid that reflows without media queries
Declare one minimum card width, let the grid count how many tracks fit, and a row of cards reflows from four columns to one with no media query at all.
Centre an element with flexbox and no wrapper markup
Centre one element on both axes with flexbox by giving the container a size to centre against, and keep straight which property owns which axis.
Create a two-column layout with a fixed sidebar
Split a page into a 16rem sidebar and a fluid content column with one grid track list, then collapse it to a single column before the content becomes cramped.
Keep a table header visible with sticky positioning
Pin a table header to the top of its own scroll box with position: sticky on the cells, keep borders and backgrounds honest, and avoid the wrapper that silently defeats it.
Create CSS design tokens
2 examplesExpress reusable colour, spacing, and focus values through custom properties and the cascade.
Define colour tokens for light and dark schemes
Declare intent-named colour custom properties once, re-point them under prefers-color-scheme, and keep both schemes above 4.5:1 for body and secondary text.
Style a visible keyboard focus ring with custom properties
Give keyboard focus a ring that survives both colour schemes and forced-colors mode by driving :focus-visible outlines from width, offset, and colour tokens.
Adjacent navigation
- Parent: Home
- Other language hubs: HTML
- Other language hubs: JavaScript
- Other language hubs: TypeScript
- Related topic: CSS Layout
- Related topic: DOM Events
- Related topic: Form Validation
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