// Copyright (c) 2003-2016, CKSource - Frederico Knabben. All rights reserved. // For licensing, see LICENSE.md or http://ckeditor.com/license $ck-def-z: ( 'default': 1, 'modal': 999 ); @function ck-z( $layer: 'default', $index: 0 ) { @return map-get( $ck-def-z, $layer ) + $index; }