[css-overflow-3] whitespace

Author: fantasai

css-overflow-3/Overview.bs

@@ -477,7 +477,6 @@ Overflow Viewport Propagation</h3>
 
 	If ''overflow/visible'' is applied to the viewport,
 	it must be interpreted as ''overflow/auto''.
-
 	If ''overflow/clip'' is applied to the viewport,
 	it must be interpreted as ''overflow/hidden''.