Summary

This document defines a comprehensive system of CSS variables for font selection across various categories. It establishes definitions for 18 font families, categorized by style (system, transitional, old-style, humanist, geometric-humanist, classical-humanist, neo-grotesque, monospace-slab-serif, monospace-code, industrial, rounded-sans, slab-serif, antique, didone, handwritten) and specifying fallback fonts within each category to ensure consistent appearance across different browsers and systems. These variables are intended to standardize typography for a project.

Title

Open Props: sub-atomic styles

Description

Open source CSS custom properties to help accelerate adaptive and consistent design. Available from a CDN or NPM, as CSS or Javascript.

Keywords

size, import, font, ease, open, props, color, surface, https, text, media, animation, dark, light, custom, mask, gray

Upstreams

nerdy.dev, designcember.com, wwinks.com

Downstreams

github.com, stackblitz.com, unpkg.com, npmjs.com, modernfontstacks.com, mozilla.org, ishadeed.com, twitter.com, postcss.org

NS Lookup

A 35.157.26.135, A 63.176.8.218

Dates

Created 2024-02-24

Updated 2026-02-01

Summarized 2026-03-06