Sliding Tab Site Navigation

Hey there, I’m working on a site where we’re attempting to mimic the sort of sliding tab navigation found here – I was able to track down this cloneable example –
The only downside with this version of the tabs is that these tabs exist only as sections of a single page. On our site, the tabs would need to exist more as a page to page link. I was going to start off by just trying to figure out some sort of sliding page transition, but I cant imagine that it wouldnt be a lot less smooth than that Vine Trail example we’re trying to emulate. Anybody have experience with this sort of thing? Any help is appreciated!

Here is my site Read-Only: LINK
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