Xerxisfy Elite Style Sheet (X2S) is a TypeScript-based CSS preprocessor and bundler designed for its custom `.x2s` stylesheet syntax. Currently at version 26.0.1, it actively develops and provides a robust CLI for compiling single `.x2s` files or entire directories into a single optimized CSS bundle. While no explicit release cadence is documented, the high major version suggests frequent and potentially significant updates. Key differentiators include unique features like `@context` for scoped global variables, `light(...) dark(...)` for theme baking, semantic layering via `layer:`, Xerx Guard locks (`@lock`) to prevent property overrides, and advanced container unit math (e.g., `cw`, `ch`). It also offers zero-config polyfilling for modern CSS features and automatic raster asset rewriting to WebP formats, making it a comprehensive tool for modern CSS development that extends beyond standard preprocessor capabilities like nesting, mixins, and control flow.
npm install xerxisfy-elite-style-sheetVerified import paths — ran on the pinned version, not inferred.
Demonstrates installing X2S, creating a sample .x2s file, and compiling it to a minified CSS bundle with source maps in watch mode using the CLI.
Consult the official GitHub repository for specific migration guides or changelogs for the versions you are upgrading between.
Install `cwebp` or ImageMagick on your system. For example, on macOS: `brew install webp` or `brew install imagemagick`.
For mid-line or general single-line comments, use `//`. For multi-line comments, use `** ... **`.
Prioritize using the `x2s` CLI command for compilation tasks. If programmatic integration is necessary, thoroughly test and pin specific versions to avoid unexpected behavior.
Install a WebP converter like `cwebp` or `ImageMagick` and ensure it's accessible in your system's PATH. On Debian/Ubuntu: `sudo apt-get install webp` (for cwebp) or `sudo apt-get install imagemagick`.
Use `//` for single-line comments or `** your comment **` for block comments. `#` is only for comments at the absolute beginning of a line.
Ensure all variables are declared with `$` before use. For global variables within specific sections, use the `@context` directive to properly scope them, or declare them at the top level of your `.x2s` file.