As designed Sidebar reducing in width in responsive view at 340px or above


Active member
When in narrow responsive mode and the sidebar drops underneath the main content, the width of the sidebar gets smaller when the viewing device is 340px or wider.

For example, if running at 320x480, the "Members Online" box is 300px wide. If I then resize to say 360x640, that same "Members Online" box becomes only 250px wide. This seems to occur at viewing widths 340px or larger.

The same thing also occurs if switching to landscape view. The sidebar drops down to 250px wide.

I am seeing this on several mobile devices, and also using Firefox responsive mode developer tool.

I'm not sure if this is a bug or intended, but it is causing me some issues where I have 300px ads in the sidebar.



XenForo developer
Staff member
At a certain point, the sidebar goes 100% width, otherwise it just uses the standard width. This is as designed. If you're customizing this, you may need to remove the CSS to do this or check your approach.