[css-align-3] Tweak vertical-align condition wording to work even if top and middle are specified together. #5234

Author: fantasai

css-align-3/Overview.bs

@@ -944,9 +944,9 @@ The 'justify-content' and 'align-content' Properties</h3>
 				All values other than ''align-content/normal'' force the block container to [=establish an independent formatting context=].
 
 				For table cells, the behavior of ''align-content: normal'' depends on the computed value of 'vertical-align':
-				''vertical-align/top'' makes it behave as ''start'',
-				''vertical-align/middle'' makes it behave as ''center'',
-				''vertical-align/bottom'' makes it behave as ''end'',
+				''vertical-align/top'' makes it behave as ''start'' and
+				''vertical-align/bottom'' makes it behave as ''end'';
+				otherwise ''vertical-align/middle'' makes it behave as ''center'',
 				and all other values make it behave as ''baseline''.
 				[[!CSS2]]