I write a, adjust the brightness of the popover pop-up box, external and a zoom function, the pop-up box in close when no problem, but after enlarge the popover pop-up box won't work the

Placement="bottom"
Title="brightness"
Width="200"
The trigger="click"
@ hide="hideLight"
Ref="reference" & gt;

V - model="lightValueShow
": Max=100
Min=- 100