html - show() jquery function slide down all of my content -

i have 2 navbars on website, when show() second navbar of content on website going down width height of navbar, how stop this?

i want show navbar on content (z-index) , don't slide down content after navbar.

what should do? bottom:-100px; doesn't work.

regards.

probably navbar not position:absolute try changing position in css absolute , should work