lépcss

Lépcss is an open-source CSS framework and design system that emphasizes simplicity, accessibility, and semantic theming. It provides a modular core of CSS variables, a small set of utility classes for spacing, typography, and color, and a collection of ready-made components such as buttons, forms, cards, and alerts. The framework is designed to be lightweight and predictable, with a responsive grid intended to work across devices without JavaScript.

Origin and development: Lépcss emerged from a collaborative effort in the web‑development community in the early 2020s. It is maintained by a core team along with volunteers who publish updates under an open-source license. The project prioritizes backward compatibility, clear migration guidance, and transparent decision-making processes.

Design and architecture: Lépcss relies on CSS custom properties for theming and supports theming through a root-based variable set or a data-theme attribute. Its grid is flexbox-based, with a small container and column system defined via CSS variables. Accessibility considerations include color tokens with sufficient contrast, focus-visible styles, motion preferences, and keyboard-friendly components.

Features and usage: Core features include a spacing and typography scale, color tokens, a library of utility classes, and components for common UI elements. It can be integrated via npm or a content delivery network, and is designed to work with or without a build step. Theming can be customized by overriding root variables or supplying a theme file, enabling lightweight branding.

Reception and status: Lépcss has been adopted by several small projects and documentation sites seeking a minimal, accessible CSS baseline. As of the latest release, development remains active with community contributions and periodic updates. The project is distributed under an open-source license and welcomes new contributors.