How to set column widths to a jQuery datatable?

Question

I have a jQuery datatable(outlined in red), but what happens is that the table jumps out of the width I have set for the div(which is 650 px).

Here is the screen shot

Answer 1

In java script calculate width using following code

var scrollX = $(window).width()*58/100;
var oTable = $('#reqAllRequestsTable').dataTable({
    "sScrollX": scrollX
    } );