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Split Slideshow 50 / 50 vertical scrolling at vp100

Hi, anybody any advice or able to replicate this slideshow which I had done up using js and css in Adobe Muse?

Here it is below.

I want it split screen until it gets down to mobile where I still want it scrolling up vertically.

I have the code but need somebody to add it to my projects homepage for me to add the images too using the CMS.

Here is my site Read-Only: LINK
(how to share your site Read-Only link)