[css-flexbox-1] Note flex-flow reverse values' interaction with initial scroll position. #5610

Author: fantasai

css-flexbox-1/Overview.bs

@@ -1130,6 +1130,11 @@ Flex Flow Direction: the 'flex-direction' property</h3>
 	Painting order, speech order, and sequential navigation orders
 	are not affected.
 
+	Note: Depending on the value of 'justify-content',
+	the reverse values of 'flex-direction' can alter the initial scroll position
+	on [=flex containers=] that are also [=scroll containers=].
+	See [[css-align-3#overflow-scroll-position]].
+
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@@ -1180,6 +1185,11 @@ Flex Line Wrapping: the 'flex-wrap' property</h3>
 	the <a>cross-start</a> and <a>cross-end</a> directions
 	are swapped.
 
+	Note: Depending on the value of 'align-content',
+	the ''wrap-reverse'' value of 'flex-wrap' can alter the initial scroll position
+	on [=flex containers=] that are also [=scroll containers=].
+	See [[css-align-3#overflow-scroll-position]].
+
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