To add a publishing page to your site:
Go to Site Contents and click on Pages
NOTE: If you do not see the option for Pages that means that publishing has not been turned on for your site. Review Enable Publishing Features below to learn how to do that.
Click on Files, New Document and select Page
Enter a Title, Description and Name and selct your Page Layout
(back to Site User Help) (back to Site Owner Help)
(back to Site Owner Help)
SharePoint Online includes a set of features that enables you to author and publish rich webpages for your intranet or Internet. These features are housed within the SharePoint Publishing Infrastructure and must be activated prior to use. You can activate them at either the site collection or site level.
Note If you created your site or site collection using one of the publishing site templates, the publishing infrastructure is already active and the publishing features ready to use.
From the root of your site collection, click Settings > Site settings.
On the Site Settings page under Site Collection Administration, click Site collection features.
On the Site Features page, scroll down to SharePoint Server Publishing Infrastructure and click Activate.
Once publishing features are activated, subsites inherit them automatically. But, if you built a site before activating the publishing infrastructure, you’ll have to manually activate it for each site.
From any page within the site, click (gear icon) Settings > Site settings.
On the Site Settings page, in the Site Actions section, click Manage site features.
On the Site Features page, next to SharePoint Server Publishing, click Activate.