Typography

Segoe is the standard typeface for Office. Use it in your add-in to align with Office task panes, dialog boxes, and content objects. Fabric Core gives you access to Segoe. It provides a full type ramp of Segoe with many variations - across font weight and size - in convenient CSS classes. Not all Fabric Core sizes and weights will look great in an Office Add-in. To fit harmoniously or avoid conflicts, consider using a subset of the Fabric Core type ramp. The following table lists Fabric Core's base classes that we recommend for use in Office Add-ins.

Note

Text color isn't included in these base classes. Use Fabric Core's "neutral primary" for most text on white backgrounds.

To learn more about available typography, see Web Typography.

Type	Class	Size	Weight	Recommended Usage
Hero	.ms-font-xxl	28 px	Segoe Light	This class is larger than all other typographic elements in Office. Use it sparingly to avoid unseating visual hierarchy. Avoid use on long strings in constrained spaces. Provide ample whitespace around text using this class. Commonly used for first-run messages, hero elements, or other calls to action.
Title	.ms-font-xl	21 px	Segoe Light	This class matches the task pane title of Office applications. Use it sparingly to avoid a flat typographic hierarchy. Commonly used as the top-level element such as dialog box, page, or content titles.
Subtitle	.ms-font-l	17 px	Segoe Semilight	This class is the first stop below titles. Commonly used as a subtitle, navigation element, or group header.
Body	.ms-font-m	14 px	Segoe Regular	Commonly used as body text within add-ins.
Caption	.ms-font-xs	11 px	Segoe Regular	Commonly used for secondary or tertiary text such as timestamps, by lines, captions, or field labels.
Annotation	.ms-font-mi	10 px	Segoe Semibold	The smallest step in the type ramp should be used rarely. It's available for circumstances where legibility isn't required.