Custom build drop down menu isn't responsive?

[iris245 (iris)]

Hi Webflow community,

Hope that you can help me out with the following situation:
I designed 2 different drop down menus for desktop and mobile, but when I am resizing the mobile version the drop down will not fill the entire page and the text isn’t centered anymore.
To make this I used the following tutorial:

Maybe it isn’t working because I used grid?
I saw somewhere on the forum you shouldn’t use absolute when you don’t know what your’e doing (I think I am in that category)

Could someone tell me what I am doing wrong and how to fix this problem?
Thanks!

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Here is my site Read-Only: https://preview.webflow.com/preview/studiowm?utm_medium=preview_link&utm_source=designer&utm_content=studiowm&preview=ada667d95685259342ab2abb947c6dba&mode=preview

[vincent (Webflow Expert)]

Using Flexbox for that device fixes it.

[iris245 (iris)]

Thanks Vincent for the quick reply!
I adjusted like you describe above, but following problem still exists.
It seems I set somewhere a curtain width, but I am not aware of this.