diff --git a/content/patterns/coding/writing-inline-demos.md b/content/patterns/coding/writing-inline-demos.md
index be5bb8b..7ef7fc4 100644
--- a/content/patterns/coding/writing-inline-demos.md
+++ b/content/patterns/coding/writing-inline-demos.md
@@ -73,6 +73,36 @@ toggle.addEventListener('click', (e) => {
 </script>
 {{</demo>}}
 
+{{<demo>}}
+<button aria-pressed="false">Toggle Me</button>
+<style>
+button {
+    background: blue;
+    color: white;
+    border: 0;
+    font-size: 1rem;
+    font-family: serif;
+    padding: 0.5em 1em;
+    border-right: 5px solid #000;
+    border-bottom: 5px solid #000;
+}
+
+[aria-pressed="true"] {
+  border: 0;
+  border-top: 5px solid #000;
+  border-left: 5px solid #000;
+}
+</style>
+<script>
+var toggle = demo.querySelector('[aria-pressed]');
+
+toggle.addEventListener('click', (e) => {  
+  let pressed = e.target.getAttribute('aria-pressed') === 'true';
+  e.target.setAttribute('aria-pressed', !pressed);
+});
+</script>
+{{</demo>}}
+
 ## Captioned demos
 
 It's possible to give your demo a caption using an accessible `<figure>` and `<figcaption>` structure. All _you_ need to do is supply a `caption` attribute. For example:
diff --git a/docs/patterns/coding/writing-inline-demos/index.html b/docs/patterns/coding/writing-inline-demos/index.html
index e6f6cac..92c059e 100644
--- a/docs/patterns/coding/writing-inline-demos/index.html
+++ b/docs/patterns/coding/writing-inline-demos/index.html
@@ -324,10 +324,53 @@ toggle.addEventListener('click', (e) => {
 </script>
 
   </template>
-  <script>ShadyCSS.prepareTemplate(template34e756fc953627a51e20255208dbdb57, 'demo-elem34e756fc953627a51e20255208dbdb57'); var script = template34e756fc953627a51e20255208dbdb57.content.querySelector('script'); if (script) { script.textContent = `(function() { var demo = document.querySelector('demo-elem34e756fc953627a51e20255208dbdb57').shadowRoot; ${script.textContent} })()` } class DemoElem extends HTMLElement { connectedCallback() { ShadyCSS.styleElement(this); this.attachShadow({mode: 'open'}); this.shadowRoot.appendChild(template34e756fc953627a51e20255208dbdb57.content.cloneNode(true)); } } customElements.define('demo-elem34e756fc953627a51e20255208dbdb57', DemoElem);</script>
+  <script>(function() { ShadyCSS.prepareTemplate(template34e756fc953627a51e20255208dbdb57, 'demo-elem34e756fc953627a51e20255208dbdb57'); var script = template34e756fc953627a51e20255208dbdb57.content.querySelector('script'); if (script) { script.textContent = `(function() { var demo = document.querySelector('demo-elem34e756fc953627a51e20255208dbdb57').shadowRoot; ${script.textContent} })()` } class DemoElem extends HTMLElement { connectedCallback() { ShadyCSS.styleElement(this); this.attachShadow({mode: 'open'}); this.shadowRoot.appendChild(template34e756fc953627a51e20255208dbdb57.content.cloneNode(true)); } } customElements.define('demo-elem34e756fc953627a51e20255208dbdb57', DemoElem); })();</script>
 </div>
 
 
+<p>
+
+
+<div class="demo-container">
+  
+      <demo-elem5b7c6e1c905eca8144b27f3bc6737574 class="demo" id="demo-5b7c6e1c905eca8144b27f3bc6737574"></demo-elem5b7c6e1c905eca8144b27f3bc6737574>
+      
+  
+  <template id="template5b7c6e1c905eca8144b27f3bc6737574">
+      
+<button aria-pressed="false">Toggle Me</button>
+<style>
+button {
+    background: blue;
+    color: white;
+    border: 0;
+    font-size: 1rem;
+    font-family: serif;
+    padding: 0.5em 1em;
+    border-right: 5px solid #000;
+    border-bottom: 5px solid #000;
+}
+
+[aria-pressed="true"] {
+  border: 0;
+  border-top: 5px solid #000;
+  border-left: 5px solid #000;
+}
+</style>
+<script>
+var toggle = demo.querySelector('[aria-pressed]');
+
+toggle.addEventListener('click', (e) => {  
+  let pressed = e.target.getAttribute('aria-pressed') === 'true';
+  e.target.setAttribute('aria-pressed', !pressed);
+});
+</script>
+
+  </template>
+  <script>(function() { ShadyCSS.prepareTemplate(template5b7c6e1c905eca8144b27f3bc6737574, 'demo-elem5b7c6e1c905eca8144b27f3bc6737574'); var script = template5b7c6e1c905eca8144b27f3bc6737574.content.querySelector('script'); if (script) { script.textContent = `(function() { var demo = document.querySelector('demo-elem5b7c6e1c905eca8144b27f3bc6737574').shadowRoot; ${script.textContent} })()` } class DemoElem extends HTMLElement { connectedCallback() { ShadyCSS.styleElement(this); this.attachShadow({mode: 'open'}); this.shadowRoot.appendChild(template5b7c6e1c905eca8144b27f3bc6737574.content.cloneNode(true)); } } customElements.define('demo-elem5b7c6e1c905eca8144b27f3bc6737574', DemoElem); })();</script>
+</div>
+</p>
+
 <h2 id="captioned-demos">Captioned demos</h2>
 
 <p>It&rsquo;s possible to give your demo a caption using an accessible <code>&lt;figure&gt;</code> and <code>&lt;figcaption&gt;</code> structure. All <em>you</em> need to do is supply a <code>caption</code> attribute. For example:</p>
diff --git a/docs/service-worker.js b/docs/service-worker.js
index 9c105b0..65718aa 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';
 
-var precacheConfig = [["browserconfig.xml","67c3113b1574fecc6015d56d774e1d38"],["categories/index.xml","0ac1d02cfbcad2fcc8c13b2c54715338"],["css/fonts/miriamlibre-bold.woff","96496f6f06535d25b3bcba876917ca35"],["css/fonts/miriamlibre-bold.woff2","668defa44d9a74dd709ce0c826a5eb11"],["css/fonts/pt_sans-web-bold.woff","f83c22b548d2d684e24e315d81f7d22b"],["css/fonts/pt_sans-web-bold.woff2","84520c22e6ebf1b30b6f17251d65fff7"],["css/fonts/pt_sans-web-italic.woff","31f09f09a1d3fbe6c8de19644ef0e614"],["css/fonts/pt_sans-web-italic.woff2","df128e1d5a449fc0506fc1b48aac0184"],["css/fonts/pt_sans-web-regular.woff","32100f6ebf01af64d4a71416561c072d"],["css/fonts/pt_sans-web-regular.woff2","b6d4ede9a3a5dbe4d5ac242ae4b0ecc2"],["css/images/icon-tick.svg","35d4d4728ea80d254508b2bca4109d70"],["css/images/stripe.svg","fa3f32a026b6a1bb04ee98d963432e15"],["css/prism.css","004029c8c70ed2bbaa5d9debcf14f8c7"],["css/styles.css","36494dc390f7119da0cadcad11138bb4"],["images/android-icon-144x144.png","43e1f47f182b13d0dee15f510213e928"],["images/android-icon-192x192.png","4c07782e52e0ab714074e6d3d69dc3ec"],["images/android-icon-36x36.png","3b2cd8c925a66bf84c89b68bb30e5f62"],["images/android-icon-48x48.png","45dc386eea1d8a46216a8b6de9b156c6"],["images/android-icon-72x72.png","b04c64637efed2b04fa900ddfcbfe75d"],["images/android-icon-96x96.png","bd9c126a4d6baf7ce442122ce0e89e11"],["images/apple-icon-114x114.png","72e127d6f01dfcd2ba2340141babc536"],["images/apple-icon-120x120.png","bc7cd9e36869e66aaca78412207bf723"],["images/apple-icon-144x144.png","43e1f47f182b13d0dee15f510213e928"],["images/apple-icon-152x152.png","567c64205576865b5e5d06c849613ca2"],["images/apple-icon-180x180.png","6b8734c446bf02ab50be598b4c01ec9c"],["images/apple-icon-57x57.png","f8c586086752c78870820b6190d6b42b"],["images/apple-icon-60x60.png","6e88df111e506bcd5501bed4ff10542e"],["images/apple-icon-72x72.png","b04c64637efed2b04fa900ddfcbfe75d"],["images/apple-icon-76x76.png","d8666e0ac256f39f8c5c628486bd71fb"],["images/apple-icon-precomposed.png","725f6cec25256abb1db10385e0724400"],["images/apple-icon.png","725f6cec25256abb1db10385e0724400"],["images/browser-Chrome-Android.svg","3100b2a9c5f0e34982c717fc2aa46d73"],["images/browser-Chrome.svg","fa39b4be6727525330e928f582fbe80a"],["images/browser-Edge.svg","9e8265ab8f6a701587a4271dd3aa6a73"],["images/browser-Firefox-Android.svg","452df7b9e83c70a07e8e03b4e8dab9c4"],["images/browser-Firefox.svg","d3093eda664be3d0cc6d791e1386420f"],["images/browser-IE.svg","13e192cf2b3fe17e7049a49b7d085caa"],["images/browser-Opera.svg","95d65630c9f7deef6a3098af8f5baf9f"],["images/browser-Safari-iOS.svg","f729e629ec998ec40d313495d7257741"],["images/browser-Safari.svg","523ee9491f5a937b8975f4d23aa77f62"],["images/favicon-16x16.png","7a99c20d6c00babddd26d03607b8721d"],["images/favicon-32x32.png","129881474a1bf130027bff7a1e89febd"],["images/favicon-96x96.png","bd9c126a4d6baf7ce442122ce0e89e11"],["images/favicon.ico","81c46feedbfcc6c6dc9495e4fd5adfad"],["images/icon-info.svg","53a6c555ce41f818556c71ab0dfc533b"],["images/icon-tag.svg","f067bbbc072941b2a0335679300bfc6c"],["images/icon-warning.svg","2a4322abbee9aed694fadb50e98a1f61"],["images/logo.png","0134d77c2c6b01eabb425990bab7ce9a"],["images/ms-icon-144x144.png","43e1f47f182b13d0dee15f510213e928"],["images/ms-icon-150x150.png","e73370837ab9060772a18d62aaacd0f0"],["images/ms-icon-310x310.png","8a7143516b929702e3309bb537a99c5c"],["images/ms-icon-70x70.png","d7c6e7368733d53b5f979546d5aa4fe9"],["images/open_in_desktop.png","e899d6679b011aa7b0e783683d90d99b"],["images/serve_from_docs.png","15ae9eac3737a21593ebe00a9312bf9e"],["images/steve_faulkner.jpg","b90382f2b505ce6f6b1e08657637395e"],["index.html","3cc882447dea5380dcbe5175ee78574f"],["index.xml","e990e9cc581f3c68bdc878b5ce1a7ff0"],["js/dom-scripts.js","9956fb927a1097a05d07f48cdfbb9140"],["js/prism.js","0c1fb8d3a69ee7c91dbf0f361ded7763"],["js/service-worker-registration.js","d60f01dc1393cbaaf4f7435339074d5e"],["js/webcomponents.js","c5f6fe397db634cde89f66c2f1bc2f62"],["manifest.json","4e77b7f1253442852a2f185822f1b4d8"],["patterns/coding/code-blocks/index.html","6abe539eda7d2c398dc6c447ef819d13"],["patterns/coding/codepen-embedding/index.html","d79bcf58c2c16388ff83ab5a6592f69f"],["patterns/coding/color-palettes/index.html","5a3fac471e7f5d5a517338d88b711b34"],["patterns/coding/index.html","2cdbebb04b57502aafe30345565d47ee"],["patterns/coding/index.xml","e05792f5d471e69af658fcfe0d949e05"],["patterns/coding/tested/index.html","1d93fab885b8713296c270b64279a278"],["patterns/coding/writing-inline-demos/index.html","92842d2bede716ec7a9104df2815fc89"],["patterns/index.html","078ae6ae992ad822d26ee8172747a162"],["patterns/index.xml","b2fe2e8940440bfcc3f152e9c43f4a28"],["patterns/installation/index.html","e003cce0eb0c6bf6d6a7026fbc368cea"],["patterns/library-setup/index.html","de95b33e2daabbd8ab41b8e8b3d456a6"],["patterns/media/including-images/index.html","ae05de42d94592a72a3506211c0612d7"],["patterns/media/including-videos/index.html","b4b51ded9ee25cec606e954b345d0c0e"],["pat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+var precacheConfig = [["browserconfig.xml","67c3113b1574fecc6015d56d774e1d38"],["categories/index.xml","0ac1d02cfbcad2fcc8c13b2c54715338"],["css/fonts/miriamlibre-bold.woff","96496f6f06535d25b3bcba876917ca35"],["css/fonts/miriamlibre-bold.woff2","668defa44d9a74dd709ce0c826a5eb11"],["css/fonts/pt_sans-web-bold.woff","f83c22b548d2d684e24e315d81f7d22b"],["css/fonts/pt_sans-web-bold.woff2","84520c22e6ebf1b30b6f17251d65fff7"],["css/fonts/pt_sans-web-italic.woff","31f09f09a1d3fbe6c8de19644ef0e614"],["css/fonts/pt_sans-web-italic.woff2","df128e1d5a449fc0506fc1b48aac0184"],["css/fonts/pt_sans-web-regular.woff","32100f6ebf01af64d4a71416561c072d"],["css/fonts/pt_sans-web-regular.woff2","b6d4ede9a3a5dbe4d5ac242ae4b0ecc2"],["css/images/icon-tick.svg","35d4d4728ea80d254508b2bca4109d70"],["css/images/stripe.svg","fa3f32a026b6a1bb04ee98d963432e15"],["css/prism.css","004029c8c70ed2bbaa5d9debcf14f8c7"],["css/styles.css","36494dc390f7119da0cadcad11138bb4"],["images/android-icon-144x144.png","43e1f47f182b13d0dee15f510213e928"],["images/android-icon-192x192.png","4c07782e52e0ab714074e6d3d69dc3ec"],["images/android-icon-36x36.png","3b2cd8c925a66bf84c89b68bb30e5f62"],["images/android-icon-48x48.png","45dc386eea1d8a46216a8b6de9b156c6"],["images/android-icon-72x72.png","b04c64637efed2b04fa900ddfcbfe75d"],["images/android-icon-96x96.png","bd9c126a4d6baf7ce442122ce0e89e11"],["images/apple-icon-114x114.png","72e127d6f01dfcd2ba2340141babc536"],["images/apple-icon-120x120.png","bc7cd9e36869e66aaca78412207bf723"],["images/apple-icon-144x144.png","43e1f47f182b13d0dee15f510213e928"],["images/apple-icon-152x152.png","567c64205576865b5e5d06c849613ca2"],["images/apple-icon-180x180.png","6b8734c446bf02ab50be598b4c01ec9c"],["images/apple-icon-57x57.png","f8c586086752c78870820b6190d6b42b"],["images/apple-icon-60x60.png","6e88df111e506bcd5501bed4ff10542e"],["images/apple-icon-72x72.png","b04c64637efed2b04fa900ddfcbfe75d"],["images/apple-icon-76x76.png","d8666e0ac256f39f8c5c628486bd71fb"],["images/apple-icon-precomposed.png","725f6cec25256abb1db10385e0724400"],["images/apple-icon.png","725f6cec25256abb1db10385e0724400"],["images/browser-Chrome-Android.svg","3100b2a9c5f0e34982c717fc2aa46d73"],["images/browser-Chrome.svg","fa39b4be6727525330e928f582fbe80a"],["images/browser-Edge.svg","9e8265ab8f6a701587a4271dd3aa6a73"],["images/browser-Firefox-Android.svg","452df7b9e83c70a07e8e03b4e8dab9c4"],["images/browser-Firefox.svg","d3093eda664be3d0cc6d791e1386420f"],["images/browser-IE.svg","13e192cf2b3fe17e7049a49b7d085caa"],["images/browser-Opera.svg","95d65630c9f7deef6a3098af8f5baf9f"],["images/browser-Safari-iOS.svg","f729e629ec998ec40d313495d7257741"],["images/browser-Safari.svg","523ee9491f5a937b8975f4d23aa77f62"],["images/favicon-16x16.png","7a99c20d6c00babddd26d03607b8721d"],["images/favicon-32x32.png","129881474a1bf130027bff7a1e89febd"],["images/favicon-96x96.png","bd9c126a4d6baf7ce442122ce0e89e11"],["images/favicon.ico","81c46feedbfcc6c6dc9495e4fd5adfad"],["images/icon-info.svg","53a6c555ce41f818556c71ab0dfc533b"],["images/icon-tag.svg","f067bbbc072941b2a0335679300bfc6c"],["images/icon-warning.svg","2a4322abbee9aed694fadb50e98a1f61"],["images/logo.png","0134d77c2c6b01eabb425990bab7ce9a"],["images/ms-icon-144x144.png","43e1f47f182b13d0dee15f510213e928"],["images/ms-icon-150x150.png","e73370837ab9060772a18d62aaacd0f0"],["images/ms-icon-310x310.png","8a7143516b929702e3309bb537a99c5c"],["images/ms-icon-70x70.png","d7c6e7368733d53b5f979546d5aa4fe9"],["images/open_in_desktop.png","e899d6679b011aa7b0e783683d90d99b"],["images/serve_from_docs.png","15ae9eac3737a21593ebe00a9312bf9e"],["images/steve_faulkner.jpg","b90382f2b505ce6f6b1e08657637395e"],["index.html","3cc882447dea5380dcbe5175ee78574f"],["index.xml","e990e9cc581f3c68bdc878b5ce1a7ff0"],["js/dom-scripts.js","9956fb927a1097a05d07f48cdfbb9140"],["js/prism.js","0c1fb8d3a69ee7c91dbf0f361ded7763"],["js/service-worker-registration.js","d60f01dc1393cbaaf4f7435339074d5e"],["js/webcomponents.js","c5f6fe397db634cde89f66c2f1bc2f62"],["manifest.json","4e77b7f1253442852a2f185822f1b4d8"],["patterns/coding/code-blocks/index.html","6abe539eda7d2c398dc6c447ef819d13"],["patterns/coding/codepen-embedding/index.html","d79bcf58c2c16388ff83ab5a6592f69f"],["patterns/coding/color-palettes/index.html","5a3fac471e7f5d5a517338d88b711b34"],["patterns/coding/index.html","2cdbebb04b57502aafe30345565d47ee"],["patterns/coding/index.xml","e05792f5d471e69af658fcfe0d949e05"],["patterns/coding/tested/index.html","1d93fab885b8713296c270b64279a278"],["patterns/coding/writing-inline-demos/index.html","7840942d48be0e98e8f2e1c2ed5fd3e8"],["patterns/index.html","078ae6ae992ad822d26ee8172747a162"],["patterns/index.xml","b2fe2e8940440bfcc3f152e9c43f4a28"],["patterns/installation/index.html","e003cce0eb0c6bf6d6a7026fbc368cea"],["patterns/library-setup/index.html","de95b33e2daabbd8ab41b8e8b3d456a6"],["patterns/media/including-images/index.html","ae05de42d94592a72a3506211c0612d7"],["patterns/media/including-videos/index.html","b4b51ded9ee25cec606e954b345d0c0e"],["pat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 var cacheName = 'sw-precache-v3-sw-precache-' + (self.registration ? self.registration.scope : '');
 
 
diff --git a/themes/infusion/layouts/shortcodes/demo.html b/themes/infusion/layouts/shortcodes/demo.html
index 12b6b36..edb9102 100644
--- a/themes/infusion/layouts/shortcodes/demo.html
+++ b/themes/infusion/layouts/shortcodes/demo.html
@@ -1,6 +1,6 @@
 {{ $uniq := .Inner | htmlEscape | md5 | lower }}
 {{ $template := printf "template-%s" $uniq }}
-{{ $string := replace "<script>ShadyCSS.prepareTemplate(template%s, 'demo-elem%s'); var script = template%s.content.querySelector('script'); if (script) { script.textContent = `(function() { var demo = document.querySelector('demo-elem%s').shadowRoot; ${script.textContent} })()` } class DemoElem extends HTMLElement { connectedCallback() { ShadyCSS.styleElement(this); this.attachShadow({mode: 'open'}); this.shadowRoot.appendChild(template%s.content.cloneNode(true)); } } customElements.define('demo-elem%s', DemoElem);</script>" "%s" $uniq }}
+{{ $string := replace "<script>(function() { ShadyCSS.prepareTemplate(template%s, 'demo-elem%s'); var script = template%s.content.querySelector('script'); if (script) { script.textContent = `(function() { var demo = document.querySelector('demo-elem%s').shadowRoot; ${script.textContent} })()` } class DemoElem extends HTMLElement { connectedCallback() { ShadyCSS.styleElement(this); this.attachShadow({mode: 'open'}); this.shadowRoot.appendChild(template%s.content.cloneNode(true)); } } customElements.define('demo-elem%s', DemoElem); })();</script>" "%s" $uniq }}
 <div class="demo-container">
   {{ if .Get "caption" }}
   <figure role="group" aria-labelledby="caption-{{ $uniq }}">