# Bootstrap — Design Style Reference

> **Unofficial, community-authored reference.** Compiled by [designsystems.one](https://www.designsystems.one). Not affiliated with, endorsed by, or sponsored by Bootstrap Team. "Bootstrap" and related marks belong to their respective owners. This document describes publicly observable style attributes in original words — it contains no copied documentation, logos, icon artwork, or original token files. Always defer to the official source for canonical, current values.

**System:** Bootstrap
**Owner:** Bootstrap Team
**Official documentation:** https://getbootstrap.com/


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## Summary

The world's most popular framework for building responsive, mobile-first sites.

## Engineering profile

- **Ships for:** CSS-only, Framework-agnostic
- **Token pipeline:** Custom
- **Source model:** Open source

## Apply this style with an AI tool

Paste this into your AI coding assistant as a direction, then iterate:

> Design in the spirit of Bootstrap by Bootstrap Team — The world's most popular framework for building responsive, mobile-first sites. Match the intent, not the pixels; adapt it to my product rather than cloning it.

## Official reference

- [Bootstrap documentation](https://getbootstrap.com/)

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_Generated by [designsystems.one](https://www.designsystems.one/design-systems/bootstrap) — a catalogue of public design systems. Style facts are reported for reference and education; adapt them to your own product. Report issues or takedown requests via the site._