Slider won't hide slides that aren't being shown

Hi everyone,

I’m having an issue where in mobile view only my testimonial slider functions fine except for the fact that the height doesn’t automatically adjust to the current slide’s height - but this is fine as technically the slides that aren’t being shown are still active, just out of screen.
But I’ve found it virtually impossible to align all of the slides horizontally centered so the third testimonial is in line with the arrows to move to the next slide?

I am very new to Webflow but have found most of it intuitive being a designer. But may be missing a function I’ve not yet seen.

I appreciate any insight, my read-only site link is below with a video of my issue here: Upload Files Easily | Fast File Upload and Sharing Up To 10GB

Here is my site Read-Only: Webflow - Macarthur Disability Services

For all of those curious for the solution, Anna in the following post provided a method which solved my issue: Slider: Fluid height or vertical-align middle