This article shows how to set a minimum height for the background widget on your Website Builder website.
Scroll down to the Create your website section and click on the Website Builder icon.
Click on the Login button next to the relevant package.
Double click on the Background widget to open the settings pane.
Add a line for minimum height e.g. min-height: 200px;/p>
The completed edit should look this:
Click on the Save Changes button.
Please note: This will change the minimum height of all instances of the background widget across the site.