Problem with a div position behaviour

Hi everyone,

First of all sorry if I make any mistakes choosing the right discussion or anything. I am having some trouble with a specific div that is positioning really strangely on both phone views. I have been trying to solve this issue for a while but I can’t figure it out what’s happening.

The divblock is a filter menu, I want to be triggered by the filter button and it has different design on desktop and on mobile. On desktop works perfectly, but on the mobile view before even starting with the animation it is position above the page. I have tried all types of positions but any of them seems to work. Here is a screenshot of how is positioning:

Does someone know how to solve it?

Thank you so much in advance.

Here is my site Read-Only: Webflow - Norcan