header html5 tags

src/pages/_includes/layout/navbar.html

@@ -41,7 +41,7 @@
 	</header>
 
 	{% unless condensed %}
-	<div class="navbar-expand-{{ breakpoint }}">
+	<header class="navbar-expand-{{ breakpoint }}">
 		<div class="collapse navbar-collapse" id="navbar-menu">
 			<div class="navbar {% if include.dark-secondary %}navbar-dark{% else %}navbar-light{% endif %}">
 				<div class="container-xl">
@@ -50,7 +50,7 @@
 				</div>
 			</div>
 		</div>
-	</div>
+	</header>
 	{% endunless %}
 
 {% if include.sticky %}