Cascading stylesheets are used to style the content of mobile apps created using the Mobile Application Builder for Zimbra Community. These stylesheets are embedded within configuration files within the Resources/folder of the mobile web server components.
The default stylesheet is located within the Resources/Styles.xml file in the web server components. This is a LESS-based stylesheet and defines a set of variables that are used to define base fonts, colors, and spacing. The variables can be adjusted to implement bulk changes to the mobile experience.
When previewing changes, the mobile app/site can be viewed on a mobile device's browser or through the native app (if deployed).