wp-jet-fuel/src/css/admin.css

Facilitates the addition of custom functionality to a WordPress website, including Custom Post Types, Meta Fields, Widgets, Taxonomies, Shortcodes, Admin Modificaitons, etc.

/**
 * Allow Admin header menu sites list to overflow
 */
ul#wp-admin-bar-my-sites-list {
  overflow: scroll;
  max-height: calc(100vh - 108px);
}