Changing cell border size

I’m trying to change the border size of cell A on a 2E layout to be 0px. I tried to override the styles but it doesn’t seem to work because the initial definition is done using inline styles. Is there a way to change this without having to modify the source code?

I’m trying to modify the following:
div.dhxcont_global_layout_area

Thanks,
John

[code]

div.dhxcont_global_layout_area { left: 0px; top: 0px; }

[/code]

As i see you use skyblue skin.
This element is hardcoded, you can’t delete the borders.
You just can diaplay:none backgroud pictures of it