- C
- COinS safe
- Catalog lookup link
- Category handler
- Category handler/doc
- Category link
- Category link with count
- Caution
- Ceil
- Center
- Center/doc
- Cite web
- Clear
- Cnote2
- Cnote2 Begin
- Cnote2 End
- Code
- Collapse bottom
- Collapse top
- Colon
- Color
- Color contrast conformance
- Color contrast conformance/doc
- Color contrast ratio
- Color contrast ratio/doc
- Color sample
- Component
- Component/doc
- Craft Recipe
- Cref2
- Crossreference
- Crossreference/styles.css