responsive theme

What do you mean by not responsive?

When I use it on a mobile phone or a tablet it turns out really different. The sidebar box ends up in the middle of the screen and overlaps the page.

Are you sure you just added a border?

Yes, because when I undo it, it will respond well on a tablet.

But you have a Custom CSS style giving the sidebar a left margin of -322 pixels

Someone gave me this code to put a border around my sidebar.
What should my margin say?

Thanks for your help!

Did you explain to that someone that the website was responsive when you asked how to add a border to it? That’s the wrong code for a responsive website.

Use this instead:

@media screen and (min-width: 960px) {
    .site-sidebar {
        width: 278px;
        padding: 10px;
        border: 1px solid black;
    }
}

Thank you so much, this worked!