[css-tables] Clarify the effect of box-sizing on cell measures

Author: FremyCompany

css-tables-3/Overview.bs

@@ -1237,10 +1237,32 @@ spec:filter-effects-1; type:property; text:filter
 						<li>Otherwise, 0
 					</ul>
 
+				<!--——————————————————————————————————————————————————————————————————————————-->
+				<dt><dfn id="offsets-adjusted-width">offsets-adjusted min-width, width, and max-width</dfn></dt>
+				<dd>
+					<ul>
+						<li>For <a>table-track</a> and <a>table-track-group</a> boxes, 
+							the offsets-adjusted value of width properties is their computed value, 
+							irrespective of the value of 'box-sizing' applied on the element.
+						<li>For <a>table-cell</a> boxes,
+							the offsets-adjusted value of width properties is their computed value
+							from which the cell's border-{left|right}-width and/or padding-{left|right} have eventually been deduced,
+							depending on the value of 'box-sizing'.
+							<div class="note">
+								When the table is laid out <a>in collapsed-borders mode</a>, 
+								the border value to deduce is half the value of the winning border value on each side
+								(see <a href="#border-conflict-resolution-algorithm">conflict resolution explaination note</a>)
+							</div>
+					</ul>
+					
+					<a class="hint" href="https://wptest.center/#/hmmbt3">Testcase.</a>
+					<a class="hint" href="https://wptest.center/#/rnfac4">Testcase.</a>
+					<a class="hint" href="https://wptest.center/#/3lao88">Testcase.</a>
+
 				<!--——————————————————————————————————————————————————————————————————————————-->
 				<dt><dfn>outer min-content</dfn> and <dfn>outer max-content</dfn> widths</dt>
 				<dd>The outer min-content and max-content widths are defined for table cells, columns, and column groups.
-					The 'width', 'min-width', and 'max-width' values used in these definitions are those defined <a href="#TODO">above</a>:
+					The 'width', 'min-width', and 'max-width' values used in these definitions are the offsets-adjusted values defined <a href="#offsets-adjusted-width">above</a>:
 					<ul>
 						<li>The <b>outer min-content width</b> of a table cell is
 								<code>max('min-width', min-content width)</code>
@@ -1275,11 +1297,6 @@ spec:filter-effects-1; type:property; text:filter
 
 			</dl>
 
-			<div class="issue">
-				EDITORIAL. These definitions need to account for the 'box-sizing' property.
-			</div>
-
-
 		<!--——————————————————————————————————————————————————————————————————————————-->
 		<h4 id="computing-column-measures">Computing Column Measures</h3>