Changing / Setting Global Font Color/Size by Element

Greetings Everyone!

I was wondering if there is a way to set font size and color defaults by element type (i.e. Header/Body)

I understand themes but I'd like to set all Header elements to (i.e) Verdana, 18px, white and all Body elements to (i.e) Segoe UI, 14px, green.

I'd basically would like to control elements in Story Line similar to the way .CSS controls elements. 

Thanks Very Much!

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