Fix failing tests.

assets/styles/layouts/_catalog.scss

@@ -1,3 +1,5 @@
+// stylelint-disable no-descending-specificity
+
 fieldset {
   border-top: solid 2px var(--accent);
   font-family: $font-family-sans-serif;
@@ -211,7 +213,7 @@ fieldset {
     border-bottom: solid 2px var(--accent);
   }
 
-  fieldset div:not(hidden) {
+  fieldset div:not([hidden]) {
     position: absolute;
     width: 100%;
     background: var(--body-bg);
@@ -276,7 +278,7 @@ fieldset {
     margin-bottom: 0;
   }
 
-  fieldset div:not(hidden) {
+  fieldset div:not([hidden]) {
     position: relative;
     border: 0;
   }

dist/mix-manifest.json

@@ -1,6 +1,6 @@
 {
     "/scripts/aldine.js": "/scripts/aldine.js?id=a166171314fdc227903c",
-    "/styles/aldine.css": "/styles/aldine.css?id=728f9c04264f59ea9db3",
+    "/styles/aldine.css": "/styles/aldine.css?id=00b0c10d93f464c01cc5",
     "/styles/editor.css": "/styles/editor.css?id=10e3f4b144847aa8d75e",
     "/scripts/customizer.js": "/scripts/customizer.js?id=decf119933e3b2d4b210"
 }

inc/helpers/namespace.php

@@ -7,7 +7,7 @@
 
 namespace Aldine\Helpers;
 
-use \Pressbooks\Licensing;
+use Pressbooks\Licensing;
 
 /**
  * Get catalog data.

partials/book.php

@@ -12,7 +12,7 @@ $date = ( isset( $book['metadata']['datePublished'] ) ) ? str_replace( '-', '',
 		<a href="<?php echo $book['link']; ?>"><?php echo maybe_truncate_string( $book['metadata']['name'] ); ?></a>
 	</p>
 	<?php /* <?php if (isset( $book['metadata']['author'] ) ) { ?>
-  <p class="book__author">
+	<p class="book__author">
 		<?php _e( 'By', 'pressbooks-aldine' ); ?> <?php foreach ( $book['metadata']['author'] as $author ) {
 			echo $author['name'];
 		} ?>

partials/content-page-catalog.php

@@ -42,7 +42,7 @@ $available_subjects = get_available_subjects( $catalog_data );
 				if ( array_key_exists( $key, $available_subjects ) ) : ?>
 				<h3><span class="label"><?php echo $val['label']; ?></span></h3>
 				<?php foreach ( $val['children'] as $k => $v ) :
-					if ( in_array( $k, $available_subjects[$key] ) ) : ?>
+					if ( in_array( $k, $available_subjects[ $key ], true ) ) : ?>
 						<input type="radio" name="subject" id="<?php echo $k; ?>" value="<?php echo $k; ?>" <?php checked( $subject, $k ); ?>>
 						<label for="<?php echo $k; ?>"><span class="label"><?php echo $v; ?></span> <svg class="checked"><use xlink:href="#checkmark" /></svg></label>
 					<?php endif; ?>