This article gives you a step by step guide on adding CSS code to your campaign along with a varity of pre-written code you can use.
This article contains some simple CSS Snippets you can add to your campaign to advance the branding on your campaign.
This article contains CSS snippets for editing text on your campaign.
This article contains CSS snippets for editing your widgets on your campaign.
This article contains CSS snippets for your projector display/leaderboard.