This CENTER pane auto-sizes to fit the space between the 'border-panes'

This layout was created with only default options - no customization

Only the applyDefaultStyles option was enabled for basic formatting

The Close buttons in East/West panes and the buttons below are examples of custom buttons

Go to the Demos page

Open All Panes   Close All Panes   Toggle All Panes

Toggle North Pane   Toggle South Pane

Hide East Pane   Unhide East (Closed)   Unhide East (Open)

Toggle Live-Resizing (all panes)   Enable State Cookie   Reset State