There is a bad formatting bug when using percentage widths on inline block elements on exported sites only (with or without floats). The calculation for percentage widths has an error causing nasty rewrap issues, bumping elements to the next line when they do not exceed their bounds.
The error only shows up in exported sites only and is fine on Webflow hosted versions.
I will try to track down the cause and build a simpler example if I get free time. Fairly easy to reproduce.