DataTables fixed headers misaligned with columns in wide tables

Question

Problem

When using the sScrollX, sScrollXInner and/or sScrollY to achieve a fixed header table with its inner content scroll

Answer 1

Faced the same issue recently and was still searching for the solution when I tried something on my css, check if adding to your cells (th and td)

-webkit-box-sizing: content-box; 
-moz-box-sizing: content-box;  
-sizing: content-box;

will resolve this issue; for me, I was using some html/css framework that was adding a the value border-box in every element.