rounded corners to content boxes

Hi would I add rounded corners to content boxes.

I’ve figured out how to do it for the widgets but not the boxes the content such as text etc… is surrounded by.

As an example the widgets on the left are rounded, but the contact us box is not.

https://www.beaumontvision.com/contact-us/

I am using the Vision template. https://www.ads-software.com/themes/vision/

This is the code i am using for my widgets.

.widget_text {border-radius: 10px; }

Thanks in advance.