[css-nesting-1] fix nesting example (w3c#6394)

jonathantneal · web-flow · commit 76c5c7f25008 · 2021-06-17T13:33:15.000-07:00
diff --git a/css-nesting-1/Overview.bs b/css-nesting-1/Overview.bs
@@ -673,7 +673,7 @@ Mixing Nesting Rules and Declarations {#mixing}
 		<xmp highlight=css>
 			article {
 				color: blue;
-				:where(&) { color: red; }
+				@nest :where(&) { color: red; }
 			}
 		</xmp>
 

Original file line number	Diff line number	Diff line change
`@@ -673,7 +673,7 @@ Mixing Nesting Rules and Declarations {#mixing}`
`673`	`673`	`<xmp highlight=css>`
`674`	`674`	`article {`
`675`	`675`	`color: blue;`
`676`		`- :where(&) { color: red; }`
	`676`	`+ @nest :where(&) { color: red; }`
`677`	`677`	`}`
`678`	`678`	`</xmp>`
`679`	`679`