You won't be able to dismiss this by usual means (escape or click button), but you can close it programatically based on user choices or actions.
"This invitation looks much nicer than shown on the screen. The quality of the paper is great which makes the invitation a bit formal, but still fun. I recommend this invitation for announcing a nice night out with the girls."
"This is a beautiful card. I love the animal print and the color combination. The card stock it great quality. I would defiantly recommend this card for those of you who have a bit of a wild side."