diff --git a/mgs/mgs.html b/mgs/mgs.html
index dd90a6e..82650e7 100644
--- a/mgs/mgs.html
+++ b/mgs/mgs.html
@@ -12,7 +12,7 @@
 	<body>
 		<dd-header></dd-header>
 		<main>
-			<aside>
+			<nav>
 				<h2>Contents</h2>
 				<ol>
 					<li><a href="#metal-gear-solid-trivia">Top</a></li>
@@ -28,7 +28,7 @@
 							<li><a href="#some-more-notes">Some more notes</a></li>
 						</ol></li>
 				</ol>
-			</aside>
+			</nav>
 
 			<article>
 				<h1 id="metal-gear-solid-trivia">Metal Gear Solid Trivia</h1>
diff --git a/styles.css b/styles.css
index c4a4c56..3bebd12 100644
--- a/styles.css
+++ b/styles.css
@@ -9,7 +9,7 @@ html {
 header,
 footer,
 article,
-aside {
+main nav {
 	border: 3px black solid;
 	background: turquoise;
 	margin: 5px;
@@ -55,7 +55,7 @@ footer {
 	font-weight: bold;
 }
 
-nav {
+#headermain nav {
 	font-size: x-large;
 }
 
@@ -75,7 +75,7 @@ footer ul li + li::before {
 }
 
 /* main content */
-aside {
+main nav {
 	padding: 10px;
 }
 
@@ -132,7 +132,7 @@ ol ol ol {
 		align-items: start;
 	}
 
-	aside {
+	main nav {
 		flex: auto;
 		position: sticky;
 		top: 10px;
