Disable header changes on mobile

That’s exactly what I wanted. Thanks!

I just went to the Inspect panel in Chrome and clicked the button to activate the mobile view. Why the menu shifted to the left, I have no clue…
Sometimes that view is not very accurate, I noticed that.
Thanks for the ?mobile_view=1 tip. Didn’t know that.
I just want to add, for those who are not familiar with this (and it took me a while to revert back to normal), to go back just add ?mobile_view=0 like https://example.com?mobile_view=0

With the ?mobile_view=1 option, I noticed it would act crazy when it hit that point of switching to the topic’s title, but on mobile it didn’t. There’s maybe something weird when using a desktop browser.

As you can see from my screenshots, besides the messed up header, the slider with the categories is completely removed.

1 - Do you think that’s happening because the height of the header doesn’t adjust properly?
2 - How can I create CSS that only applies when that change happens?