How Can I Add a Scrollbar (Jscrollpane) to a Fixed layout (centered 2 columns + header, 100% height) Column

I'm trying to create a centered (margin:0 auto) 2 column layout with header that fits (100%) the screen. I need to make a separate scroll bar for each column (afterwards I want to change that scroll bar to a jscrollPane).I'm trying to create a centered (margin:0 auto)