diff --git a/docs/404.html b/docs/404.html
index b0f2b7d..f83dd7f 100644
--- a/docs/404.html
+++ b/docs/404.html
@@ -150,6 +150,7 @@
             </div>
             
               <nav id="patterns-nav" class="patterns" role="navigation">
+                <h2 class="vh">Main navigation</h2>
                 <button id="menu-button" aria-expanded="false">
                   <svg viewBox="0 0 50 50" aria-hidden="true" focusable="false">
                     <use xlink:href="#menu"></use>
diff --git a/docs/index.html b/docs/index.html
index 5494fab..38f5426 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -153,6 +153,7 @@
             </div>
             
               <nav id="patterns-nav" class="patterns" role="navigation">
+                <h2 class="vh">Main navigation</h2>
                 <button id="menu-button" aria-expanded="false">
                   <svg viewBox="0 0 50 50" aria-hidden="true" focusable="false">
                     <use xlink:href="#menu"></use>
diff --git a/docs/patterns/coding/code-blocks/index.html b/docs/patterns/coding/code-blocks/index.html
index 1e2a0f6..ab720c4 100644
--- a/docs/patterns/coding/code-blocks/index.html
+++ b/docs/patterns/coding/code-blocks/index.html
@@ -150,6 +150,7 @@
             </div>
             
               <nav id="patterns-nav" class="patterns" role="navigation">
+                <h2 class="vh">Main navigation</h2>
                 <button id="menu-button" aria-expanded="false">
                   <svg viewBox="0 0 50 50" aria-hidden="true" focusable="false">
                     <use xlink:href="#menu"></use>
diff --git a/docs/patterns/coding/color-palettes/index.html b/docs/patterns/coding/color-palettes/index.html
index d396e32..ca4f160 100644
--- a/docs/patterns/coding/color-palettes/index.html
+++ b/docs/patterns/coding/color-palettes/index.html
@@ -150,6 +150,7 @@
             </div>
             
               <nav id="patterns-nav" class="patterns" role="navigation">
+                <h2 class="vh">Main navigation</h2>
                 <button id="menu-button" aria-expanded="false">
                   <svg viewBox="0 0 50 50" aria-hidden="true" focusable="false">
                     <use xlink:href="#menu"></use>
diff --git a/docs/patterns/coding/command-line/index.html b/docs/patterns/coding/command-line/index.html
index 72ae96d..ff48e20 100644
--- a/docs/patterns/coding/command-line/index.html
+++ b/docs/patterns/coding/command-line/index.html
@@ -150,6 +150,7 @@
             </div>
             
               <nav id="patterns-nav" class="patterns" role="navigation">
+                <h2 class="vh">Main navigation</h2>
                 <button id="menu-button" aria-expanded="false">
                   <svg viewBox="0 0 50 50" aria-hidden="true" focusable="false">
                     <use xlink:href="#menu"></use>
diff --git a/docs/patterns/coding/demo-embedding/index.html b/docs/patterns/coding/demo-embedding/index.html
index d174e3b..73d1f16 100644
--- a/docs/patterns/coding/demo-embedding/index.html
+++ b/docs/patterns/coding/demo-embedding/index.html
@@ -150,6 +150,7 @@
             </div>
             
               <nav id="patterns-nav" class="patterns" role="navigation">
+                <h2 class="vh">Main navigation</h2>
                 <button id="menu-button" aria-expanded="false">
                   <svg viewBox="0 0 50 50" aria-hidden="true" focusable="false">
                     <use xlink:href="#menu"></use>
diff --git a/docs/patterns/coding/file-trees/index.html b/docs/patterns/coding/file-trees/index.html
index a77749a..aaba810 100644
--- a/docs/patterns/coding/file-trees/index.html
+++ b/docs/patterns/coding/file-trees/index.html
@@ -150,6 +150,7 @@
             </div>
             
               <nav id="patterns-nav" class="patterns" role="navigation">
+                <h2 class="vh">Main navigation</h2>
                 <button id="menu-button" aria-expanded="false">
                   <svg viewBox="0 0 50 50" aria-hidden="true" focusable="false">
                     <use xlink:href="#menu"></use>
diff --git a/docs/patterns/coding/index.html b/docs/patterns/coding/index.html
index afcf140..8963f47 100644
--- a/docs/patterns/coding/index.html
+++ b/docs/patterns/coding/index.html
@@ -150,6 +150,7 @@
             </div>
             
               <nav id="patterns-nav" class="patterns" role="navigation">
+                <h2 class="vh">Main navigation</h2>
                 <button id="menu-button" aria-expanded="false">
                   <svg viewBox="0 0 50 50" aria-hidden="true" focusable="false">
                     <use xlink:href="#menu"></use>
diff --git a/docs/patterns/coding/tested/index.html b/docs/patterns/coding/tested/index.html
index 1ff676d..61f80da 100644
--- a/docs/patterns/coding/tested/index.html
+++ b/docs/patterns/coding/tested/index.html
@@ -150,6 +150,7 @@
             </div>
             
               <nav id="patterns-nav" class="patterns" role="navigation">
+                <h2 class="vh">Main navigation</h2>
                 <button id="menu-button" aria-expanded="false">
                   <svg viewBox="0 0 50 50" aria-hidden="true" focusable="false">
                     <use xlink:href="#menu"></use>
diff --git a/docs/patterns/coding/writing-inline-demos/index.html b/docs/patterns/coding/writing-inline-demos/index.html
index 30ed330..1ccf92e 100644
--- a/docs/patterns/coding/writing-inline-demos/index.html
+++ b/docs/patterns/coding/writing-inline-demos/index.html
@@ -150,6 +150,7 @@
             </div>
             
               <nav id="patterns-nav" class="patterns" role="navigation">
+                <h2 class="vh">Main navigation</h2>
                 <button id="menu-button" aria-expanded="false">
                   <svg viewBox="0 0 50 50" aria-hidden="true" focusable="false">
                     <use xlink:href="#menu"></use>
diff --git a/docs/patterns/help/index.html b/docs/patterns/help/index.html
index 02fd940..7126fef 100644
--- a/docs/patterns/help/index.html
+++ b/docs/patterns/help/index.html
@@ -150,6 +150,7 @@
             </div>
             
               <nav id="patterns-nav" class="patterns" role="navigation">
+                <h2 class="vh">Main navigation</h2>
                 <button id="menu-button" aria-expanded="false">
                   <svg viewBox="0 0 50 50" aria-hidden="true" focusable="false">
                     <use xlink:href="#menu"></use>
diff --git a/docs/patterns/index.html b/docs/patterns/index.html
index 63c9a9b..fc4677d 100644
--- a/docs/patterns/index.html
+++ b/docs/patterns/index.html
@@ -150,6 +150,7 @@
             </div>
             
               <nav id="patterns-nav" class="patterns" role="navigation">
+                <h2 class="vh">Main navigation</h2>
                 <button id="menu-button" aria-expanded="false">
                   <svg viewBox="0 0 50 50" aria-hidden="true" focusable="false">
                     <use xlink:href="#menu"></use>
diff --git a/docs/patterns/installation/index.html b/docs/patterns/installation/index.html
index 7875e15..b526281 100644
--- a/docs/patterns/installation/index.html
+++ b/docs/patterns/installation/index.html
@@ -150,6 +150,7 @@
             </div>
             
               <nav id="patterns-nav" class="patterns" role="navigation">
+                <h2 class="vh">Main navigation</h2>
                 <button id="menu-button" aria-expanded="false">
                   <svg viewBox="0 0 50 50" aria-hidden="true" focusable="false">
                     <use xlink:href="#menu"></use>
diff --git a/docs/patterns/media/including-images/index.html b/docs/patterns/media/including-images/index.html
index 960f5be..bf12830 100644
--- a/docs/patterns/media/including-images/index.html
+++ b/docs/patterns/media/including-images/index.html
@@ -150,6 +150,7 @@
             </div>
             
               <nav id="patterns-nav" class="patterns" role="navigation">
+                <h2 class="vh">Main navigation</h2>
                 <button id="menu-button" aria-expanded="false">
                   <svg viewBox="0 0 50 50" aria-hidden="true" focusable="false">
                     <use xlink:href="#menu"></use>
diff --git a/docs/patterns/media/including-videos/index.html b/docs/patterns/media/including-videos/index.html
index e67c277..2d48120 100644
--- a/docs/patterns/media/including-videos/index.html
+++ b/docs/patterns/media/including-videos/index.html
@@ -150,6 +150,7 @@
             </div>
             
               <nav id="patterns-nav" class="patterns" role="navigation">
+                <h2 class="vh">Main navigation</h2>
                 <button id="menu-button" aria-expanded="false">
                   <svg viewBox="0 0 50 50" aria-hidden="true" focusable="false">
                     <use xlink:href="#menu"></use>
diff --git a/docs/patterns/media/index.html b/docs/patterns/media/index.html
index eed80f4..4a0a739 100644
--- a/docs/patterns/media/index.html
+++ b/docs/patterns/media/index.html
@@ -150,6 +150,7 @@
             </div>
             
               <nav id="patterns-nav" class="patterns" role="navigation">
+                <h2 class="vh">Main navigation</h2>
                 <button id="menu-button" aria-expanded="false">
                   <svg viewBox="0 0 50 50" aria-hidden="true" focusable="false">
                     <use xlink:href="#menu"></use>
diff --git a/docs/patterns/printing/index.html b/docs/patterns/printing/index.html
index 6d0e295..6a29c26 100644
--- a/docs/patterns/printing/index.html
+++ b/docs/patterns/printing/index.html
@@ -150,6 +150,7 @@
             </div>
             
               <nav id="patterns-nav" class="patterns" role="navigation">
+                <h2 class="vh">Main navigation</h2>
                 <button id="menu-button" aria-expanded="false">
                   <svg viewBox="0 0 50 50" aria-hidden="true" focusable="false">
                     <use xlink:href="#menu"></use>
diff --git a/docs/patterns/serving/index.html b/docs/patterns/serving/index.html
index 735067f..d93db2a 100644
--- a/docs/patterns/serving/index.html
+++ b/docs/patterns/serving/index.html
@@ -150,6 +150,7 @@
             </div>
             
               <nav id="patterns-nav" class="patterns" role="navigation">
+                <h2 class="vh">Main navigation</h2>
                 <button id="menu-button" aria-expanded="false">
                   <svg viewBox="0 0 50 50" aria-hidden="true" focusable="false">
                     <use xlink:href="#menu"></use>
diff --git a/docs/patterns/setup/index.html b/docs/patterns/setup/index.html
index d39de33..4ad2fe5 100644
--- a/docs/patterns/setup/index.html
+++ b/docs/patterns/setup/index.html
@@ -150,6 +150,7 @@
             </div>
             
               <nav id="patterns-nav" class="patterns" role="navigation">
+                <h2 class="vh">Main navigation</h2>
                 <button id="menu-button" aria-expanded="false">
                   <svg viewBox="0 0 50 50" aria-hidden="true" focusable="false">
                     <use xlink:href="#menu"></use>
diff --git a/docs/patterns/updating/index.html b/docs/patterns/updating/index.html
index 2d4ecfa..6d12217 100644
--- a/docs/patterns/updating/index.html
+++ b/docs/patterns/updating/index.html
@@ -150,6 +150,7 @@
             </div>
             
               <nav id="patterns-nav" class="patterns" role="navigation">
+                <h2 class="vh">Main navigation</h2>
                 <button id="menu-button" aria-expanded="false">
                   <svg viewBox="0 0 50 50" aria-hidden="true" focusable="false">
                     <use xlink:href="#menu"></use>
diff --git a/docs/patterns/writing/expandable-sections/index.html b/docs/patterns/writing/expandable-sections/index.html
index 84d3769..7fb3beb 100644
--- a/docs/patterns/writing/expandable-sections/index.html
+++ b/docs/patterns/writing/expandable-sections/index.html
@@ -150,6 +150,7 @@
             </div>
             
               <nav id="patterns-nav" class="patterns" role="navigation">
+                <h2 class="vh">Main navigation</h2>
                 <button id="menu-button" aria-expanded="false">
                   <svg viewBox="0 0 50 50" aria-hidden="true" focusable="false">
                     <use xlink:href="#menu"></use>
diff --git a/docs/patterns/writing/index.html b/docs/patterns/writing/index.html
index ad5f8cb..59faa98 100644
--- a/docs/patterns/writing/index.html
+++ b/docs/patterns/writing/index.html
@@ -150,6 +150,7 @@
             </div>
             
               <nav id="patterns-nav" class="patterns" role="navigation">
+                <h2 class="vh">Main navigation</h2>
                 <button id="menu-button" aria-expanded="false">
                   <svg viewBox="0 0 50 50" aria-hidden="true" focusable="false">
                     <use xlink:href="#menu"></use>
diff --git a/docs/patterns/writing/markdown-and-metadata/index.html b/docs/patterns/writing/markdown-and-metadata/index.html
index 97b12f2..16c9598 100644
--- a/docs/patterns/writing/markdown-and-metadata/index.html
+++ b/docs/patterns/writing/markdown-and-metadata/index.html
@@ -150,6 +150,7 @@
             </div>
             
               <nav id="patterns-nav" class="patterns" role="navigation">
+                <h2 class="vh">Main navigation</h2>
                 <button id="menu-button" aria-expanded="false">
                   <svg viewBox="0 0 50 50" aria-hidden="true" focusable="false">
                     <use xlink:href="#menu"></use>
diff --git a/docs/patterns/writing/notes-and-warnings/index.html b/docs/patterns/writing/notes-and-warnings/index.html
index e31839d..51b69c8 100644
--- a/docs/patterns/writing/notes-and-warnings/index.html
+++ b/docs/patterns/writing/notes-and-warnings/index.html
@@ -150,6 +150,7 @@
             </div>
             
               <nav id="patterns-nav" class="patterns" role="navigation">
+                <h2 class="vh">Main navigation</h2>
                 <button id="menu-button" aria-expanded="false">
                   <svg viewBox="0 0 50 50" aria-hidden="true" focusable="false">
                     <use xlink:href="#menu"></use>
diff --git a/docs/patterns/writing/project-structure/index.html b/docs/patterns/writing/project-structure/index.html
index 600f953..b80015b 100644
--- a/docs/patterns/writing/project-structure/index.html
+++ b/docs/patterns/writing/project-structure/index.html
@@ -150,6 +150,7 @@
             </div>
             
               <nav id="patterns-nav" class="patterns" role="navigation">
+                <h2 class="vh">Main navigation</h2>
                 <button id="menu-button" aria-expanded="false">
                   <svg viewBox="0 0 50 50" aria-hidden="true" focusable="false">
                     <use xlink:href="#menu"></use>
diff --git a/docs/patterns/writing/references/index.html b/docs/patterns/writing/references/index.html
index 1a25edb..0a04211 100644
--- a/docs/patterns/writing/references/index.html
+++ b/docs/patterns/writing/references/index.html
@@ -150,6 +150,7 @@
             </div>
             
               <nav id="patterns-nav" class="patterns" role="navigation">
+                <h2 class="vh">Main navigation</h2>
                 <button id="menu-button" aria-expanded="false">
                   <svg viewBox="0 0 50 50" aria-hidden="true" focusable="false">
                     <use xlink:href="#menu"></use>
diff --git a/docs/patterns/writing/snippets/index.html b/docs/patterns/writing/snippets/index.html
index 3df3b07..c87b36d 100644
--- a/docs/patterns/writing/snippets/index.html
+++ b/docs/patterns/writing/snippets/index.html
@@ -150,6 +150,7 @@
             </div>
             
               <nav id="patterns-nav" class="patterns" role="navigation">
+                <h2 class="vh">Main navigation</h2>
                 <button id="menu-button" aria-expanded="false">
                   <svg viewBox="0 0 50 50" aria-hidden="true" focusable="false">
                     <use xlink:href="#menu"></use>
diff --git a/docs/patterns/writing/tables-of-contents/index.html b/docs/patterns/writing/tables-of-contents/index.html
index 6801385..95c0b21 100644
--- a/docs/patterns/writing/tables-of-contents/index.html
+++ b/docs/patterns/writing/tables-of-contents/index.html
@@ -150,6 +150,7 @@
             </div>
             
               <nav id="patterns-nav" class="patterns" role="navigation">
+                <h2 class="vh">Main navigation</h2>
                 <button id="menu-button" aria-expanded="false">
                   <svg viewBox="0 0 50 50" aria-hidden="true" focusable="false">
                     <use xlink:href="#menu"></use>
diff --git a/docs/service-worker.js b/docs/service-worker.js
index 296f9ed..c95d47e 100644
--- a/docs/service-worker.js
+++ b/docs/service-worker.js
@@ -37,7 +37,7 @@
 /* eslint-disable indent, no-unused-vars, no-multiple-empty-lines, max-nested-callbacks, space-before-function-paren, quotes, comma-spacing */
 'use strict';
 
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diff --git a/docs/tags/markdown/index.html b/docs/tags/markdown/index.html
index a260295..5551094 100644
--- a/docs/tags/markdown/index.html
+++ b/docs/tags/markdown/index.html
@@ -150,6 +150,7 @@
             </div>
             
               <nav id="patterns-nav" class="patterns" role="navigation">
+                <h2 class="vh">Main navigation</h2>
                 <button id="menu-button" aria-expanded="false">
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diff --git a/docs/tags/metadata/index.html b/docs/tags/metadata/index.html
index 7e138ff..35ab853 100644
--- a/docs/tags/metadata/index.html
+++ b/docs/tags/metadata/index.html
@@ -150,6 +150,7 @@
             </div>
             
               <nav id="patterns-nav" class="patterns" role="navigation">
+                <h2 class="vh">Main navigation</h2>
                 <button id="menu-button" aria-expanded="false">
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diff --git a/themes/infusion/layouts/_default/baseof.html b/themes/infusion/layouts/_default/baseof.html
index 897102f..dcf9fe2 100644
--- a/themes/infusion/layouts/_default/baseof.html
+++ b/themes/infusion/layouts/_default/baseof.html
@@ -70,6 +70,7 @@
             </div>
             {{ block "nav" . }}
               <nav id="patterns-nav" class="patterns" role="navigation">
+                <h2 class="vh">Main navigation</h2>
                 <button id="menu-button" aria-expanded="false">
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                     <use xlink:href="#menu"></use>