$ca-z-index-body: 0;
$ca-z-index-dropdown: 1000;
$ca-z-index-sticky: 1020;
$ca-z-index-fixed: 1030;
$ca-z-index-modal-backdrop: 1040;
$ca-z-index-modal: 1050;
$ca-z-index-popover: 1060;
$ca-z-index-tooltip: 1070;