bp_core_enqueue_admin_bar_css()

function bp_core_enqueue_admin_bar_css() {

	// Bail if not using WordPress's admin bar or it's not showing on this
	// page request.
	if ( ! bp_use_wp_admin_bar() || ! is_admin_bar_showing() ) {
		return;
	}

	// Enqueue the additional adminbar css.
	wp_enqueue_style( 'bp-admin-bar' );
}