Changing the z index for an element with click interaction

Design help Animations & Interactions
1

hi,

I’d like to create an interaction where two sections can transition over one another like so

v2_testSite-rebuild
v2_testSite-rebuild1920×1080 1.72 MB

I’ve figured out how to transform the z space but not the z index.

Thanks.

Here is my public share link: LINK
(how to access public share link)