When I create an advertising message in a BOX, when it appears and someone wants to close it it should disappear when the user clicks on the page outside of the Ad Box. 

The only way to get rid of it is to click the X but the X is too small and barely noticable.

Like any other web page on the internet the pop up should disappear if a user clicks outside of the ad. It all adds to frustration for the user.

Am I doing something wrong? Or Please provide a fix.