See this tutorial from Danielle Beaumont: Understanding scroll effects
See the Add a third-party blog tutorial on integrating the widget from Nomad Dreamers into Adobe Muse.
Each breakpoint brings more content to the page, which is part of the page and is
downloaded. The idea is to not duplicate content between breakpoints; instead reuse the same element across breakpoints as far as possible.
If the only thing you're doing is adding breakpoints, and you only move/resize elements
that also exist in other breakpoints, then the page size growth is negligible. But if you add content to each breakpoint and set it to be hidden in other breakpoints, you create duplicate content across breakpoints, which can lead to significant growth in page size.
Another reason for not duplicating content is SEO impact—you are penalized for duplicate
content. Also, maintenance of such a page can be a nightmare. Instead, you can have
the same text frame and style it differently between breakpoints.
Viewport scaling kicks in if the page reached its minimum and it is still larger than the phone's width. Viewport scaling is a way for the phone to display the entire page at once without displaying horizontal scroll bars. If you resize your desktop browser to your phone's width, and you see a horizontal scroll bar (either due to fixed content being larger than the screen, or because you reached your minimum page width), then the same page gets a viewport scaling when viewed on a phone.
Why does a responsive site have white blocks on the right and bottom of a page when viewed on an iPad, but work fine on all other devices?
A white band is usually an indication of content being wider than the screen, at the device's page width. For example, you may have a fixed-width element that suddenly becomes wider than the page at that certain page width. The white part you're seeing is actually the browser fill. The reason you're not seeing it on other devices is because they may have a different width.
If you view your page on a desktop and resize the browser window to a width equal to the iPad's width, you see a scroll bar (when scrolling to the right you will see the white band). The reason you're seeing it right away on the iPad is possibly due to viewport scaling kicking in.
Adobe Muse does not currently offer the ability to create tables. You have to create your table outside Adobe Muse and use Object > Insert HTML to add it to your page. For more information, see Creating a table in Adobe Muse.
See the forum thread on creating tables for various methods of adding a table in your Adobe Muse site.
Currently it is not possible to create a login or a registration page in Adobe Muse using the default widgets that are available. See this forum thread for detailed information on why it is not possible to create a login page in Adobe Muse.