Apply Homepage Bottom 3 css style to all page

I have the bottom3 position on all pages of the website (stay connected, email updates, etc. modules)

However only on the homepage to I get the grey bar that expands the whole screen.

I have tried to "apply bottom3-fullwidth bottom3-grey" to module class suffix of the modules, however the styling does not apply.

How can I make it so the homepage bottom3 css style applies to all pages of the site.

Thanks

Hi

I cannot see anything special in code to do that. Can You please tell me an url to example where You cannot make bottom3 fullwidth ?