Word-spacing

I had this in one of my documents:

This does not mean that he knows <em>what</em> he is,
merely <em>that</em> he is.

Since I had EM {font-style: italic}, the space between
'what' and 'he' and 'that' and 'he' was smaller than I
would have liked.

So should:
EM {word-spacing: 1em} 
have worked (it didn't in Opera)?



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From Matthew Brealey (http://members.tripod.co.uk/lawnet (for law)or http://members.tripod.co.uk/lawnet/WEBFRAME.HTM (for CSS))
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