Quote:
Originally Posted by hobnail
My memory is that the unit, em in this case, is harmless/ignored when the value is 0. You could use feet, kilometers, light years, and 0 whatevers is still 0.
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I'm pretty sure it won't work if you include the "em" when the value is 0. That is, the intended effect for that class will not happen if you include the "em" when the value is 0.