Each Nucleus Card can be further customized beyond the existing Nucleus Card Settings by using custom CSS.
To access Card Settings, first hover over Web and select Cards:
From here, select the card you want to customize and click on the gear icon on the far right hand side:
Next, scroll down to the bottom of the page and click Use Custom CSS. A box should appear which will allow you to paste in your CSS Code.
To see a list of helpful CSS codes that you can use on your Nucleus, click here.