Footer Area Widgets

Who wrote this in your custom css?

.widget-area {
width: 300px;
}

??

I did. So the 300×250 ads would fit in the right side bar.

That’s why they are lining up vertically. They have no space to being aligned horizontally.
Did you wanted to set the right widget area to that width?
Use

#right.widget-area {
width: 300px;
}

then, but also use media queries to set the width for different viewports

Thanks that worked. But how do I use media queries?

Resolved.

Well you have to study
https://themesandco.com/snippet/media-queries-responsiveness/

OK thanks.

You’re welcome ??