Adding transition between pages in SharePoint

[mwilliams71]

I would like to add CSS and JavaScript to animate the transition of pages, like sliding pages to the left before showing the page directed to. Something like the example below.

Basic CSS Page Transition (codepen.io)

[#2]

@mwilliams71 that's definitely not possible with out-of-the-box modern SharePoint as Microsoft have removed the ability  to have custom CSS and Javascript so that when they make changes they don't break existing sites. I have no idea whether you can do this with the SPFx framework.

Rob
Los Gallardos
Intranet, SharePoint and Power Platform Manager (and classic 1967 Morris Traveller driver)

[#3]

Thank you Rob Elliott. I was just a nice to have.