[css-tables] Clarified tracked conditions for re-resolution of table-cell children height percentages

Author: FremyCompany

css-tables-3/Overview.bs

@@ -1911,6 +1911,13 @@ spec:css-sizing-3; type:property; text:box-sizing
 					where, if appropriate, percentage-based heights are this time resolved
 					against their parent cell used height.
 
+				<div class="note>
+				Note that this means it is required to keep track of the usage of percentages
+					in the properties of any direct child of the table-cell including but not limited to
+					the 'height' and 'min-height' properties for horizontal flows and 
+					the 'width' and 'min-width' properties for vertical flows.
+				</div>
+
 				It is appropriate to resolve percentage heights on direct children of a table-cell
 					if the cell is considered to have its height specified explicitly
 					or the child is absolutely positioned, see <a href="http://www.w3.org/TR/CSS2/visudet.html#the-height-property">CSS 2</a>.