darknova11 on "[Plugin: Contact Form 7] Exit/Close Button"

Hi!

I have used ver. 3.4.2 of Contact Form 7 to pop up as iFrame while someone clicks on an mailbox at my site ...
now I would like to add close / exit button in it if possible like shown on picture in link bellow...

http://img189.imageshack.us/img189/7301/x7eo.png