Suppress word wrap in Arcade

[TychoGranville]

Is there a way to suppress word wrapping in popups? I'm using Arcade to display a list and the really long strings wrap. For example:

 Is there a "no wrap" function or equivalent? I'm using this in both Pro and 10.9.1 web maps

[jcarlson]

It looks like suppressing word-wrapping is itself being suppressed.

Note how in the element inspector, I see only my font-family style applied.

But here is the configuration of the popup:

Tried various other style options to either suppress or alter word wrapping, but no luck. I can manually insert the style tag and see it update, but I can't seem to get this into the popup configuration itself.

Alternative: combine text-indent and margin-left? Then the new line is at least a bit clearer to users.