Window, Dialog, and other popups render as children of TelerikRootComponent, which makes CSS Isolation difficult. Current strategy says to use containment selector or global scope css styles.

To allow CSS isolation to pass through, I'd like to see an additional "CssScope" attribute. For example:

<TelerikWindow CssScope="my-custom-scope">
</TelerikWindow>

Then when the window is rendered:

<div ... my-custom-scope>
....
</div>