How to set navigation bar in the background

[yuekseltoprak (Yüksel)]

I want to set my navigation in the background with the hight.
The first picture is Figma the second Webflow.
in the normal css terms it would function with the z-index but in Webflow its not working.

[avivtech (Aviv Shwartz)]

Hi @yuekseltoprak ,

Can you share a read only link?