From principles and visual patterns, to semantic code and documentation, the Core Design Guidelines provides the resources to create and maintain consistent, accessible and performant Life Time digital properties.

Resources

Core Framework for Developers

Download the current version of Core (zipped). Not included, but required for Bootstrap javascript enabled components: Bootstrap JS v4.0.0-alpha.2 (GithubBootstrap (external link) | RawBootstrap (external link)) and Tether JS GithubTether JS (external link) | RawTether JS (external link) for tooltips/popovers.

Download Core Framework(external link)

Core UI for Designers

Download the latest version of Core UI—the component library for use in Sketch. Core UI also has a shared symbol library that you can utilize in new documents. Account access required.

Download Core UI (Sketch)(external link)

Project Details

Core is based on Bootstrap 4 and uses Pattern Lab and Guide Guide for maintaining and presenting all code and documentation.

More Details

Contribute

If you‘d like to help maintain Core, please reach out to one of us and let us know how you‘re willing and able to contribute.

Support

If you have any questions or need help getting starting with any aspect of Core please let us know.