Vertical Scrollbar Problems

[khanvani]

Vertical Scroll-bar does not appear when using this plugin.
Code:
$('.table-body table').DataTable(
{
"paging": false,
"ordering": true,
"info": false,
"searching":false,
"autoWidth": true,
"responsive" : true,
"width" : "100%",
"dom": 'RZ'

                });