Streaming live at 10am (PST)

Preview for Vertical Layout?

Does anyone have any suggestions for previewing the vertical layout of a site? Webflow does a brilliant job of previewing how a site’s horizontal layout will look on various devices, but I can’t figure out how to preview my sites with an eye to their vertical layout, i.e. which elements fall above and below the fold on different devices. The best I have come up with is using the Window Resizer extension in Chrome, but it’s tedious to build a list of screen sizes to test (one has to look up the aspect ratio of various devices and then figure out their viewport dimensions in CSS pixels). Thanks for any advice.

No site link because the question is very general