accordion and resize component

hi, I have a window form containing 3 datatable inserted in a accordion widget .
When I close a panel the form is resized . But I would like that when a panel is closed , the other 2 datatable dynamically widen filling all window.Come can I do ?
Thank you

Hi,

By default all works as you need, as the datatables adjust the window:

http://webix.com/snippet/0c65f568

In case your datatables must have different height, you can set the relative sizes for each accordion item using thegravity property.