= Embed a CodeRay or Pygments Stylesheet Asciidoctor can embed the stylesheet for the CodeRay or Pygments syntax highlighters. == Requirements First, make sure the appropriate library is installed on your system. See xref:syntax-highlighting:rouge.adoc[], xref:syntax-highlighting:coderay.adoc[], or xref:syntax-highlighting:pygments.adoc[] for installation instructions. Next, set the xref:asciidoc:verbatim:source-highlighter.adoc[source-highlighter attribute] and assign it the value that corresponds to the library you installed. [#coderay] == CodeRay If the `source-highlighter` attribute is `coderay` and the `coderay-css` attribute is `class`, the CodeRay stylesheet is: * _embedded_ by default * _copied_ to the file [.path]_asciidoctor-coderay.css_ inside the `stylesdir` folder within the output directory if `linkcss` is set [#pygments] == Pygments If the `source-highlighter` attribute is `pygments` and the `pygments-css` attribute is `class`, the Pygments stylesheet is: * _embedded_ by default * _copied_ to the file [.path]_asciidoctor-pygments.css_ inside the `stylesdir` folder within the output directory if `linkcss` is set