Tag Map Makes White Background Disappear

Hello!

I’ve placed the tag map on it’s own page on the site, which I’ve called ‘Index’.

Unfortunately, rather than appearing against a white background (as is the style for ‘pages’ under the theme I’m using), the tag map somehow makes the white background disappear, and displays instead against the site’s photographic background image.

See here: https://www.andrewmckinley.com/?page_id=99

Instead of: https://www.andrewmckinley.com/?page_id=146

Any idea how a noob could bring back the white apron?

Thanks for the great plugin.

https://www.ads-software.com/extend/plugins/multi-column-tag-map/