ALsp How would I make that change?
Here is the documentation for the jQuery accordion widget:
https://api.jqueryui.com/accordion/
If you wish or need to continue using these types of widgets you should familiarize yourself with how they work and how they can be configured. This shouldn't be a difficult task. If it is, you might want to seriously consider hiring a web developer or using high quality extensions that provide a visual UI inside Dreamweaver.
At this point, and in my opinion, the worst kind of help you can get is to have someone provide a "copy this code and paste it there" kind of fix. That would be like giving you a fish instead of teaching you to fish for yourself.
By the way, the float drop in your other page might be fixable by adding this rule to your CSS:
* {box-sizing: border-box;}
If not, you have a mathematical error or a fixed-width element that is wider than your column. Should be easy to spot.