At any time during the page editing process you can click on the Preview Your Page links, to view a preview as pictured below. Your site is not yet saved and all work may be lost until you click on the link in the red box in the upper righthand area of the preview page that says: To Save Your Page CLICK HERE.
		These pages are being hosted online as you are building them. So as soon as you save the page, the changes can be viewed on the web.