Accordion panel tools hidden because of vertical scrollbar [+PIC]

[aswzen]

Look at this fiddle : http://jsfiddle.net/aswzen/3m2zwud0/

if you expand all panel, the page will render a vertical scrollbar,
but the panel tools inside accordion will rendered oddly even hidden.

How to get rid of this?

thank you in advance 

[stworthy]

Please try this http://jsfiddle.net/3m2zwud0/1/

[aswzen]

thank you it works