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Design

Interface guidelines Octicons Prototyping Presentations

Development

Primer CSS Primer Components

Getting started

Breakpoints Color system Spacing Typography Marketing support Variables

Animations Borders Marketing borders (deprecated)Box shadow Colors Details Flexbox Layout Marketing layout Margin Marketing margin Marketing filters Padding Marketing padding Typography Marketing typography

Grid Table object

Alerts Autocomplete Avatars Blankslate Box overlay Box Boxed groups (deprecated)Branch name Breadcrumbs Buttons Dropdown Forms Header Labels Loaders Markdown Marketing buttons Navigation Pagehead Pagination Popover Progress Select menu Select menu (deprecated)Subhead Timeline Toasts Tooltips Truncate

Atom packages Deprecation data Docset Linting Local development Prototyping Testing resources

Accessibility HTML SCSS

Tools

Design and development tools for working with the GitHub CSS toolkit.

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