This directory contains the source and build for the default stylesheet used by the built-in HTML converter.
The stylesheet is written in plain CSS. The build minifies the stylesheet using PostCSS + cssnano and writes it to the data/stylesheets directory.
To regenerate the default stylesheet, first install the npm packages using the npm command:
$ npm i
Next, run the npm script named build:
$ npm run build
If there are any changes to the data/stylesheets/asciidoctor-default.css file, commit this file.
To validate the syntax of the CSS source, run the npm script named lint:
$ npm run lint