Adding promo bar spacer to a different element

When using the promo bar, it looks like the zotabox plugin adds an inline style of margin-top: 63px to the body element. However, I’m on a theme that has a floating element that doesn’t get moved down by this. So I need to be able to add the same top margin to it.

Could you tell me Which file holds this markup, and how I can add it to another element?

https://wordpress.org/plugins/zotabox/
https://wordpress.org/support/plugin/zotabox