| Option
| Values (default in bold)
| Description
|
| minify
| true | false | Array
| Enable or disable minification. Optionally specify an array of advanced minification parameters. Currently the only advanced option is 'colors', which will compress all color values in any notation.
|
| formatter
| block | single-line | padded
| Set the formatting mode. Overrides minify option if both are set.
|
| newlines
| use-platform | windows/win | unix
| Set the output style of newlines
|
| boilerplate
| true | false | Path
| Prepend a boilerplate to the output file
|
| versioning
| true | false
| Append a timestamped querystring to the output filename
|
| vars
| Array
| An associative array of CSS variables to be applied at runtime. These will override variables declared globally or in the CSS.
|
| cache
| true | false
| Turn caching on or off.
|
| output_dir
| Path
| Specify an output directory for compiled files. Defaults to the same directory as the host file.
|
| output_file
| Output filename
| Specify an output filename (suffix is added).
|
| asset_dir
| Path
| Directory for SVG and image files generated by plugins (defaults to the main file output directory).
|
| stat_dump
| false | true | Path
| Save compile stats and variables to a file in json format.
|
| vendor_target
| "all" | "moz", "webkit", ... | Array
| Limit aliasing to a specific vendor, or an array of vendors.
|
| rewrite_import_urls
| true | false | "absolute"
| Rewrite relative URLs inside inlined imported files.
|
| import_paths
| Array
| Additional paths to search when resolving relative import URLs.
|
| plugins
| Array
| An array of plugin names to enable.
|
| source_map
| true | false
| Output a source map (compliant with the Source Map v3 proposal).
|
| context
| Path
| Context for importing resources from relative urls (Only applies to `csscrush_string()` and command line utility).
|
| doc_root
| Path
| Specify an alternative server document root for situations where the CSS is being served behind an alias or url rewritten path.
|