Popup close button

I was hoping someone could help me with the location of the close button in my popup window.

I edited the size of my popup window in the popuprendererskin.mxml successfully my problem is the close button is now located in the middle of the popup window. I want it to be anchored to the right of the popup window. I can’t seem to find where I can edit how I set the location of this button.

I have attached an image to show my problem.
Attachment 20916

Any help on this would be greatly appreciated thanks.
Liam

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