As designed Sidebar width is not responsive

[Alpha1]

On narrow width the sidebar moves below the main content. But unlike the main content the sidebar width is not responsive, but static. If the sidebar width would be responsive like the rest of the xenforo style is, then the sidebar width would be at 100% at narrow width.
http://awesomescreenshot.com/02b5vgi359
http://awesomescreenshot.com/09c5vgi848

 

[Chris D]

This isn't a bug.

It was designed to only move below the content rather than fill the space it moves to. A different behaviour is just a few lines of CSS away and indeed, I believe some custom styles choose to do it like that.

 

[Alpha1]

Could you please share what to add to extra.css to make the sidebar conform to the width of the rest of the content above it?

 

[Chris D]

That would be a question best posted in the Styling and Customizations forum.

 

[HappyWorld]

I asked about it.
The answer is here
https://xenforo.com/community/threads/improve-responsive-layout.66034/