zammad/app/assets/stylesheets/application.css

/*
 * This is a manifest file that'll automatically include all the stylesheets available in this directory
 * and any sub-directories. You're free to add application-wide styles to this file and they'll appear at
 * the top of the compiled file, but it's generally better to create a new file per style scope.
 *= require_self
 *= require ./bootstrap.css
 *= require ./jquery-ui.css
 *= require ./codemirror.css
 *= require ./cropper.css
 *= require ./fineuploader.css
 *= require ./font.css
 *= require ./svg-dimensions.css
 *= require ./highlighter-github.css
 *= require ./jquery.enableObjectResizingShim.css
 *= require ./zammad.scss
 *
 *= require_tree ./addons/
 *= require_tree ./custom/
 *
*/