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.
"We ordered these Save the Date cards and they turned out beautifully! Love that you can change the banner to say what you want and that you have options to do different layouts on the back. Formatting was easy, so we were able to get them to look exactly how we wanted them to."
"This was my top two favorite card. The quality was great, love the pearlized paper, and the design was better in person than online."