Isolate Radzen styles to one page?

I am trying out the Radzen dropdown Blazor component. Unfortunately the standard installation (e.g. setting css in _Host.cshtml) has affected global styles, fonts and colours e.g. items in the nav menu are now in black font but had been in brown!
How can I isolate the Radzen css/styles so that they affect only the page where I am using the Radzen dorp-down (and ideally only the dropdown itself and nothing else)?
Thank you in advance
James S

You might need to use base styles:

Terrific! That made all the difference, using the -base styles (with c 3.16.3).
Thanks for the very quick response :slight_smile: