Column Sizes and setStyle

I have a grid, which has sub grids, which themselves have sub sub grids. I find the columns of the sub sub grids keep changing width (I have attached an image file to show you what I mean. Any thoughts?

Also, when I change the style of the sub sub grids, it looks okay when I am developing locally, but not on my IIS server.

Unfortunately the problem cannot be reconstructed locally. Could you please, provide with a complete demo, or share with a demo link, where the issue can be reproduced.