[css-align-3] Fix reference, typo. #5802

Author: fantasai

css-align-3/Overview.bs

@@ -1331,7 +1331,7 @@ Inline-Axis (or Main-Axis) Alignment: the 'justify-self' property</h3>
 		<tr>
 			<th><a>Alignment Container</a>
 			<td>
-				The block's <a>containing block</a>,
+				The box's <a>containing block</a>,
 				except that for block-level elements that establish a <a>block formatting context</a>
 				and are placed next to a float,
 				the <a>alignment container</a> is reduced by the space taken up by the float,
@@ -2367,7 +2367,7 @@ Appendix A: Static Position Terminology</h2>
 		<dd>
 		The <a>static position rectangle</a> of the child of a <a>flex container</a>
 		corresponds to the <a>content edges</a> of the <a>flex container</a>.
-		See <a href="https://www.w3.org/TR/css-flexbox-1/#abspos-items">static position of a grid container child</a> in [[!CSS-FLEXBOX-1]].
+		See [[!css-flexbox-1#abspos-items]].
 
 		<dt>Grid Layout
 		<dd>