CSS stylesheets are represented by
CSS Web Resources
.
You can edit your stylesheets in the CSS Web Resource editor, using the:
- Design tab organises your rules in a user-friendly UI and allows you to quickly edit common properties.
- Code tab presents the raw CSS source. Helpful if you are pasting snippets or writing advanced selectors.

You can attach CSS Web Resources to a:
Page by selecting the page and editing its Web Resource properties.
Form by opening the Form Properties window and selecting the Web Resources tab.
Theme in its
Presentation Template's Web Resources section.