GNOME.org

Custom CSS

Web allows you to set a custom CSS to change the look and feel of every web page that you visit. You may want to do this to set a preferred font size or color scheme.

  1. Open Web ▸ Preferences ▸ Fonts & Style.

  2. Press Edit Stylesheet.

  3. Your default text editor will open. Add your custom CSS and save the file.

  4. Tick the Use custom stylesheet checkbox.

An example of a custom CSS:

body{
    /*Make everything upside-down*/
    -webkit-transform: rotate(180deg);
}

Your custom CSS will override the style sheet on pages which you visit after you enable it.