Interactions on button states

I’m trying to get an “on state” marker to show up on my nav when I’m currently on that page. I can get background color and stuff like that to work but really I want to show and hide the DIV “On State Marker”. I’m getting it to work on a single page (Click the “Work” link to see) but not all pages by setting a show / hide interaction for the div “On State Marker” on “.Nav Link Container .Current”. It seems like the interaction wont work on the combo class of .Current.

How can I show and hide that div on my “.Current” states?

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Here is an example of getting it to work by having a unique marker div and interaction for each page. That works and I can use that because this site should have too many pages, but how could I make that dynamic?

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