viewport mobile view tabletview

I have two stylesheets. My problem is the viewport.

For example, This is the web view.



This is the mobile viewport, As you can see, the sidebar is hiding the stylesheet 3 and 4. How to fix that?





Another stylesheet, this is the web view:



This is the mobile view, the video change its position, how to fix that?



If i should send the code here, please tell me.