Content Page

This content page uses the Mobile Text widget to create the content.
The content width is set to 320px in the widget settings and the maximum width is set to 720px. This content width will allow the content to be responsive down to the width of an iPhone in portrait mode and the maximum width will allow iPad users to see the full content without having to scroll.
The height of the iFrame should be set to about 30px more than the height of the content page to prevent scrollbars appearing on page load.

Meta Tag
Since the content page(s) should not be indexed by the search engines, this meta tag should be inserted in each one by copying and pasting it into the Head Code box in the Page inspector …

<meta name="robots" content="no follow">

Links
Links created in a page which is displayed via an iframe will open the linked page in the frame. To prevent this and to allow the linked page to break out of the frame, the link use target="_top" like this …

<a href="page-name.html" target="_top">Link Text</a>

See the Info section of this website for more about using text and links in widgets.