To create a client-side style sheet, create a plain text file with a ".css" file extension using either a plain text editor or a CSS editor. Include CSS syntax in your client-side CSS file to control the visual presentation of Web pages.
To make it easier for you to enhance the accessibility of Web pages on this Web site, you can include any combination of the following client-side CSS in your client-side CSS file.
Rename your client-side CSS file to “userContent.css”.
Copy the file to the “chrome” sub-folder in your browser profile folder. Instructions for finding your profile folder. The “chrome” sub-folder should contain the files “userContent-example.css” and “userChrome-example.css”.