Installing the GeoServer CSS extension

The CSS extension is listed among the other extension downloads on the GeoServer download page.

The installation process is similar to other GeoServer extensions:

  1. Download the http://sourceforge.net/projects/geoserver/files/GeoServer/2025.1/extensions/geoserver-2025.1-css-plugin.zip

    Verify that the version number in the filename corresponds to the version of GeoServer you are running (for example 2025.1 above).

  2. Extract the contents of the archive into the WEB-INF/lib directory in GeoServer. Make sure you do not create any sub-directories during the extraction process.

  3. Restart GeoServer.

If installation was successful, you will see a new CSS entry in the Styles editor.

../../_images/css_style_format.png

CSS format in the new style page

After installation, you may wish to read the tutorial: Styling data with CSS.