Fix mobile menu.

dist/mix-manifest.json

@@ -1,5 +1,5 @@
 {
     "/scripts/aldine.js": "/scripts/aldine.js?id=f0380c51980a33b2d33c",
-    "/styles/aldine.css": "/styles/aldine.css?id=0aa681c6e630114c9934",
+    "/styles/aldine.css": "/styles/aldine.css?id=405ee7591545ea8b1977",
     "/scripts/customizer.js": "/scripts/customizer.js?id=f1f1f4225cba4c1b35f2"
 }

header.php

@@ -61,6 +61,7 @@
 				</a>
 			</div>
 			<div class="header__nav">
+				<a class="header__menu-icon js-header-menu-toggle" href="#navigation"><?php _e( 'Toggle Menu', 'pressbooks-book' ); ?><span class="header__menu-icon__icon"></span></a>
 				<?php wp_nav_menu( [
 					'theme_location' => 'primary-menu',
 					'container' => 'nav',
@@ -68,7 +69,6 @@
 					'container_id' => 'navigation',
 					'menu_class' => 'menu--primary',
 				] ); ?>
-				<a class="header__menu-icon js-header-menu-toggle" href="#navigation"><?php _e( 'Toggle Menu', 'pressbooks-book' ); ?><span class="header__menu-icon__icon"></span></a>
 			</div>
 		</div>
 		<h1><?php echo get_bloginfo( 'name', 'display' ); ?></h1>