function bp_get_activity_css_class() {
		global $activities_template;

		/**
		 * Filters the available mini activity actions available as CSS classes.
		 *
		 * @since 1.2.0
		 *
		 * @param array $value Array of classes used to determine classes applied to HTML element.
		 */
		$mini_activity_actions = apply_filters( 'bp_activity_mini_activity_types', array(
			'friendship_accepted',
			'friendship_created',
			'new_blog',
			'joined_group',
			'created_group',
			'new_member'
		) );

		$class = ' activity-item';

		if ( in_array( $activities_template->activity->type, (array) $mini_activity_actions ) || empty( $activities_template->activity->content ) ) {
			$class .= ' mini';
		}

		if ( bp_activity_get_comment_count() && bp_activity_can_comment() ) {
			$class .= ' has-comments';
		}

		/**
		 * Filters the determined classes to add to the HTML element.
		 *
		 * @since 1.0.0
		 *
		 * @param string $value Classes to be added to the HTML element.
		 */
		return apply_filters( 'bp_get_activity_css_class', $activities_template->activity->component . ' ' . $activities_template->activity->type . $class );
	}