[css-tables] editorial

Author: FremyCompany

css-tables-3/Overview.bs

@@ -1733,10 +1733,9 @@ spec:filter-effects-1; type:property; text:filter
 				The following schema describes the algorithm in a different way,
 					to make it easier to understand.
 			</p>
-			<img src="images/CSS-Tables-Column-Width-Assignment.svg" style="width: 100%" />
 			<details style="border: 3px solid silver; text-align: left;">
-				<summary style="background: silver">Legend</summary>
-				<div>
+				<summary style="background: silver; padding: 0 7px; outline: 3px solid silver;">Legend</summary>
+				<div style="padding: 0 1em;">
 
 					<b>Sizing algorithms: </b>
 					Each drawing of the table represents a way of sizing the columns.
@@ -1763,6 +1762,7 @@ spec:filter-effects-1; type:property; text:filter
 
 				</div>
 			</details>
+			<img src="images/CSS-Tables-Column-Width-Assignment.svg" style="width: 100%" />
 			<figcaption>Overview of the width distribution algorithm. Not normative.</figcaption>
 		</figure>