[css-flex-1] Floor flex item min-content size by its specified size. w3c#2353

Author: fantasai

css-flexbox-1/Overview.bs

@@ -2888,7 +2888,8 @@ Flex Container Intrinsic Cross Sizes</h4>
 Flex Item Intrinsic Size Contributions</h4>
 
 	The <strong>main-size <a>min-content contribution</a> of a <a>flex item</a></strong>
-	is its <em>outer</em> <a>min-content size</a>,
+	is the larger of its <em>outer</em> <a>min-content size</a>
+	and specified size (its 'width'/'height' as appropriate, if that is <a>definite</a>),
 	clamped by its <a>flex base size</a> as a maximum (if it is not growable)
 	and/or as a minimum (if it is not shrinkable),
 	and then further clamped by its <a lt="min main size property">min</a>/<a>max main size properties</a>.
@@ -3467,6 +3468,19 @@ Changes since the 16 October 2017 CR</h3>
 			they must be resolved against the inline dimension, as for blocks.
 			(<a href="https://github.com/w3c/csswg-drafts/issues/2085">Issue 2085</a>)
 
+		<li id="change-2017-flex-min-content">
+			Floored <a>flex item</a>’s <a>min-content contribution</a>
+			by their specified size ('width'/'height' as appropriate).
+			(<a href="https://github.com/w3c/csswg-drafts/issues/2353">Issue 2353</a>)
+			<blockquote>
+				The <strong>main-size <a>min-content contribution</a> of a <a>flex item</a></strong>
+				is the larger of its <em>outer</em> <a>min-content size</a>
+				<ins>and specified size (its 'width'/'height' as appropriate, if that is <a>definite</a>)</ins>,
+				clamped by its <a>flex base size</a> as a maximum (if it is not growable)
+				and/or as a minimum (if it is not shrinkable),
+				and then further clamped by its <a lt="min main size property">min</a>/<a>max main size properties</a>.
+			</blockquote>
+
 		<li id="change-2017-content-desc">
 			Added some (effectively informative) prose and a cross-reference
 			to more clearly define ''flex-basis: content''.