contacts-pane/dist/styles/utilities.css

Contacts Pane: Contacts manager for Address Book, Groups, and Individuals.

/* Shared utility variables for component styles.
   These are kept here (instead of in dev-global.css) so they can be
   bundled with component styles and reused consistently across the app.
*/

/* Utility helper classes */

/* different from mashlib .btn-primary:active {
  box-shadow: var(--box-shadow-active);
} */