title: datatables default column width not working
body: <p>i've the following datatables script</p>
  
  <pre><code>var table = jQuery('#tb').DataTable( {
      dom: 'Bfrtip',
      colReorder: true,       
      "bSort": false,
      "pageLength": 100,
      buttons: [
          {
              extend: 'excel',
              exportOptions: {
                  columns: ':visible'
              }
          },
          'colvis'
      ],
      columnDefs: [ 
          { "width": "5%", "targets": 6 }
      ]
  });
  </code></pre>
  
  <p>i try make to number 7 column's width not be autowidth, the current column's data is too long and without any word wrap/break, but this part of about is not working</p>
  
  <pre><code>columnDefs: [ 
      { "width": "5%", "targets": 6 }
  ]
  </code></pre>
  
  <p>Anyone know how to fix it?</p>