Does Spreadsheet widget have its own custom CSS?

Is the styling of the "Spreadsheet" widget dependent on an external style sheet (like Narrative Fields widget) or can actual CSS code be put into the custom CSS box for the widget?

Hi,

You have to put the CSS to the Widget Custom CSS area. If there's a custom CSS box, that means you can add your own Custom CSS to style the widget sections. If not, then there's no way you can style the widget.

Thank you!