Off Canvas Menu & Slider

Hey Guys,

I am pretty new here , so I hope anyone can help me or point me in the right direction. I am trying to style the off canvas menu - which I cannot find and have a slider element on click - which I need to style (same problem here). Both elements are invisible and I can not find where to find them. Pls help

https://preview.webflow.com/preview/partyfass-195ab54ffd5ce8f-c461a75cb84af?utm_medium=preview_link&utm_source=designer&utm_content=partyfass-195ab54ffd5ce8f-c461a75cb84af&preview=7bd30764777c1581d60151eb92b95d40&mode=preview


Here is my site Read-Only: LINK
(how to share your site Read-Only link)