I was thinking that this could be useful when working on sites that are being exported for use in a cms, wordpress for a example.
I have thought about making one page as a style guide when I making websites but never actually done it. Now I exported one of my designs in Webflow and started to make a wp-theme. WP maybe offer things that you didn't think of designing for in WF and you end up go back to WF change some thing and then back to copy and pasting into WP or change the css of course..
For example that page can include all the headings. If for example h3 is not styled I will see that quickly on that page and will be able to add a style to before exporting.
I know WF is not made for this kind of stuff to begin with I'm throwing out ideas.
Maybe some one already have a good solution for this already.