Custom CSS can be added to your campaign to further customize the look of your donation forms. To add CSS, simply follow these steps.
Head over to your Donorbox dashboard and select Campaigns.
Access the campaign editor by clicking on "Edit Campaign":
Scroll down to the Technical section, and click on Custom CSS in the menu.
Within Custom CSS, there’s a text box where you can add your custom CSS code. The code will need to be entered in between <style> opening and closing tags. Be sure to save your progress with the Update button at the bottom of the page.
Be sure to click the Update button to save your progress, then you're done!