In a double window within the original window format

[again]

Sorry to bother you guys again with this stupid little problem I created some how. Please see screenshot. Somehow yesterday when working with the windows button and I was following along a XARA video and then hitting the multipage view button and then going to website variance. Somehow I got this double window and on another save file it's a single window. It's not the format I start working with in the beginning which leaves me thinking I might be going down the wrong trail. How do I get it back to the original format. Thank you.