Publishing a page
When you're ready to make a page live, click the green "Publish" button found at the top of the page builder. If this is the first page published in a new site, you will also need to take the site online. Clicking the publish button will also update a live page with any unpublished changes that have been made to the page.
If you're not ready to take a page online, or publish new changes, you can preview the current version of that page by clicking the "Preview" button found next to the publish button.
A page can be taken offline from the page settings dropdown found next to the publish button.