# MonorailCss Documentation

> A JIT CSS compiler that aims to be Tailwind CSS 4.3 compatible, written in .NET

site: /MonorailCss.Framework/
canonical: /MonorailCss.Framework/llms.txt
generated: 2026-06-04 19:39 UTC
penningtonVersion: 0.1.0-alpha.0.240

## Map

- [Utilities](/MonorailCss.Framework/utility/llms.txt) (169 entries, ~26k tokens) — Tailwind 4.3-compatible utility classes — one page per CSS property, grouped by category.

- [MonorailCss](/MonorailCss.Framework/_llms/index.md): A JIT CSS compiler for .NET that aims for Tailwind CSS 4.2 compatibility — start here for an overview.

## Basics

- [Getting Started](/MonorailCss.Framework/_llms/basics/getting-started.md): Install MonorailCSS and generate your first CSS
- [Configuration](/MonorailCss.Framework/_llms/basics/configuration.md): The framework-wide toggles every project decides up front
- [ASP.NET Integration](/MonorailCss.Framework/_llms/basics/aspnet-integration.md): Wire MonorailCSS into an ASP.NET app at build time, at runtime, or both

## Customization

- [Theme & Colors](/MonorailCss.Framework/_llms/customization/theme.md): Customize MonorailCSS color palettes, font families, and other design tokens
- [Component Classes](/MonorailCss.Framework/_llms/customization/component-classes.md): Bundle utility classes into reusable selectors with the Applies setting
- [Custom Utilities](/MonorailCss.Framework/_llms/customization/custom-utilities.md): Extend MonorailCSS with your own utility classes, including wildcard patterns and nested selectors
- [Custom Variants](/MonorailCss.Framework/_llms/customization/custom-variants.md): Add your own variants for pseudo-classes, pseudo-elements, and other selector modifiers
- [Prose Customization](/MonorailCss.Framework/_llms/customization/prose.md): Customize the typography plugin to match your design system
- [Full Example](/MonorailCss.Framework/_llms/customization/full-example.md): A worked configuration that wires up every customization point in one place

## Reference

- [Architecture](/MonorailCss.Framework/_llms/reference/architecture.md): Understand the internal architecture of MonorailCSS
- [API Reference](/MonorailCss.Framework/_llms/api-reference.md): Public types in the MonorailCss assembly — the customer-facing API for configuring or extending the engine.