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'ap-o-toc contentmenuopen' : 'ap-o-toc'" i-amphtml-binding> <label class="ap-o-toc-toggle" for="toc" on="tap:AMP.setState({contentmenuopen: !contentmenuopen})" role="contentmenutrigger" tabindex="0"> <span class="ap-o-toc-hl">Table of contents</span> <span class="nav-icon"> <svg class="ap-a-ico"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-solid"/></svg> </span> </label> <input class="-oh -of" type="checkbox" name="toc" id="toc" autocomplete="off"> <ul><li><a href="#link-back-home">Link back home</a></li> <li><a href="#navigate-with-a-sidebar">Navigate with a sidebar</a></li></ul> </div> </section> <section class="-t"> <label class="-op -ol ap-a-sidebar-mobile-toggle-label-sidebar" for="sidebar" on="tap:sidebar-left.toggle" role="categoriemenutrigger" tabindex="0"> <span class="label-icon"><svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#sidebar-toggle"/></svg></span> <span class="label-title">Toggle Sidebar</span> </label> <label class="-op -og ap-a-sidebar-desktop-toggle-label-sidebar" for="sidebar-desktop" role="categoriemenutrigger-desktop" tabindex="0"> <span class="label-icon"><svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#sidebar-toggle"/></svg></span> <span class="label-title">Toggle Sidebar</span> </label> <nav class="-ou"> <a class="ap-m-breadcrumbs-crumb" href="/documentation/">Documentation</a> <span class="ap-m-breadcrumbs-divider"> <svg class="ap-a-ico -oa"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-solid"/></svg> </span> <a class="ap-m-breadcrumbs-crumb" href="/documentation/guides-and-tutorials/">Guides & Tutorials</a> <span class="ap-m-breadcrumbs-divider"> <svg class="ap-a-ico -oa"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-solid"/></svg> </span> <div class="ap-m-breadcrumbs-crumb">Add advanced AMP features</div> </nav> <h1>Navigating your site</h1> <p>Most mobile websites include a site navigation menu. These menus can take many different forms. In this tutorial, we'll try out the following examples for presenting navigation in AMP pages:</p> <ul> <li>A link back to your home page - the simplest option.</li> <li>A side navigation bar by using the <a href="/documentation/components/amp-sidebar-v1.0/"><code>amp-sidebar</code></a> component.</li> </ul> <h2 id="link-back-home">Link back home</h2> <p>The simplest way to get your users to access your website’s regular navigation options is to just funnel them back to your homepage!</p> <p>Try <strong>replacing</strong> your <code><header></code> tag with this version that includes a link:</p> <div class="-ta"><pre><span></span><code><span class="p"><</span><span class="nt">header</span> <span class="na">class</span><span class="o">=</span><span class="s">"headerbar"</span><span class="p">></span> <span class="p"><</span><span class="nt">a</span> <span class="na">href</span><span class="o">=</span><span class="s">"homepage.html"</span><span class="p">></span> <span class="p"><</span><span class="nt">amp-img</span> <span class="na">class</span><span class="o">=</span><span class="s">"home-button"</span> <span class="na">src</span><span class="o">=</span><span class="s">"icons/home.png"</span> <span class="na">width</span><span class="o">=</span><span class="s">"36"</span> <span class="na">height</span><span class="o">=</span><span class="s">"36"</span><span class="p">></</span><span class="nt">amp-img</span><span class="p">></span> <span class="p"></</span><span class="nt">a</span><span class="p">></span> <span class="p"><</span><span class="nt">div</span> <span class="na">class</span><span class="o">=</span><span class="s">"site-name"</span><span class="p">></span>News Site<span class="p"></</span><span class="nt">div</span><span class="p">></span> <span class="p"></</span><span class="nt">header</span><span class="p">></span> </code></pre></div> <p>And <strong>add</strong> these style rules to your inline CSS:</p> <div class="-ta"><pre><span></span><code><span class="p">.</span><span class="nc">home-button</span> <span class="p">{</span> <span class="k">margin-top</span><span class="p">:</span> <span class="mi">8</span><span class="kt">px</span><span class="p">;</span> <span class="p">}</span> <span class="p">.</span><span class="nc">headerbar</span> <span class="p">{</span> <span class="k">height</span><span class="p">:</span> <span class="mi">50</span><span class="kt">px</span><span class="p">;</span> <span class="k">position</span><span class="p">:</span> <span class="kc">fixed</span><span class="p">;</span> <span class="k">z-index</span><span class="p">:</span> <span class="mi">999</span><span class="p">;</span> <span class="k">top</span><span class="p">:</span> <span class="mi">0</span><span class="p">;</span> <span class="k">width</span><span class="p">:</span> <span class="mi">100</span><span class="kt">%</span><span class="p">;</span> <span class="k">display</span><span class="p">:</span> <span class="kc">flex</span><span class="p">;</span> <span class="k">align-items</span><span class="p">:</span> <span class="kc">center</span><span class="p">;</span> <span class="p">}</span> <span class="p">.</span><span class="nc">site-name</span> <span class="p">{</span> <span class="k">margin</span><span class="p">:</span> <span class="kc">auto</span><span class="p">;</span> <span class="p">}</span> <span class="nt">article</span> <span class="p">{</span> <span class="k">margin-top</span><span class="p">:</span> <span class="mi">50</span><span class="kt">px</span><span class="p">;</span> <span class="p">}</span> </code></pre></div> <p>Now <strong>refresh</strong> the page. You should see a link in the top-left corner of the page pointing to <code>homepage.html</code>. If you click the home icon, you’ll quickly discover it doesn’t lead anywhere (because we don't have a <code>homepage.html</code> file).</p> <p></p><figure class="alignment-wrapper center half margin- shadow"> <amp-img src="/static/img/docs/tutorials/tut-advanced-navigate-home.png" width="412" height="190" layout="responsive" alt class="i-amphtml-layout-responsive i-amphtml-layout-size-defined" i-amphtml-layout="responsive"><i-amphtml-sizer slot="i-amphtml-svc" style="display:block;padding-top:46.1165%"></i-amphtml-sizer></amp-img> <figcaption>Home icon navigation</figcaption></figure><p></p> <p>This link can be replaced with the URL of your website’s homepage to allow your users to navigate to other parts of your site through your existing website’s navigation.</p> <p>This is the simplest approach that leverages your existing website navigation. Next, we’ll explore a popular option for site navigation.</p> <h2 id="navigate-with-a-sidebar">Navigate with a sidebar</h2> <p>A common navigation technique is to add a menu icon that when clicked reveals a set of navigation links (from the side of the page). In AMP, we can create such navigation with the <a href="/documentation/components/amp-sidebar-v1.0/"><code>amp-sidebar</code></a> component.</p> <p>First, we must <strong>add</strong> the <a href="/documentation/components/amp-sidebar-v1.0/"><code>amp-sidebar</code></a> component’s JavaScript to the <code><head></code> tag:</p> <div class="-ta"><pre><span></span><code><span class="p"><</span><span class="nt">script</span> <span class="na">async</span> <span class="na">custom-element</span><span class="o">=</span><span class="s">"amp-sidebar"</span> <span class="na">src</span><span class="o">=</span><span class="s">"https://cdn.ampproject.org/v0/amp-sidebar-0.1.js"</span><span class="p">></</span><span class="nt">script</span><span class="p">></span> </code></pre></div> <p>Next, we want to display a menu icon. When the icon is tapped, it will open the sidebar. <strong>Replace</strong> the <code><header></code> with the following code to display a <a href="https://en.wikipedia.org/wiki/Hamburger_button">"hamburger"</a> icon instead of a home icon:</p> <div class="-ta"><pre><span></span><code><span class="p"><</span><span class="nt">header</span> <span class="na">class</span><span class="o">=</span><span class="s">"headerbar"</span><span class="p">></span> <span class="p"><</span><span class="nt">div</span> <span class="na">role</span><span class="o">=</span><span class="s">"button"</span> <span class="na">on</span><span class="o">=</span><span class="s">"tap:sidebar1.toggle"</span> <span class="na">tabindex</span><span class="o">=</span><span class="s">"0"</span> <span class="na">class</span><span class="o">=</span><span class="s">"hamburger"</span><span class="p">></span>☰<span class="p"></</span><span class="nt">div</span><span class="p">></span> <span class="p"><</span><span class="nt">div</span> <span class="na">class</span><span class="o">=</span><span class="s">"site-name"</span><span class="p">></span>News Site<span class="p"></</span><span class="nt">div</span><span class="p">></span> <span class="p"></</span><span class="nt">header</span><span class="p">></span> </code></pre></div> <p>In the above code, we <code>toggle</code> the sidebar through the <a href="/documentation/guides-and-tutorials/learn/amp-actions-and-events/"><code>on</code></a> action attribute on the <a href="/documentation/components/amp-sidebar-v1.0/"><code>amp-sidebar</code></a> element, which is identified by the <code>sidebar1</code> ID. Let's add the sidebar.</p> <p><strong>Add</strong> the following HTML just after the <code></header></code>:</p> <div class="-ta"><pre><span></span><code><span class="p"><</span><span class="nt">amp-sidebar</span> <span class="na">id</span><span class="o">=</span><span class="s">"sidebar1"</span> <span class="na">layout</span><span class="o">=</span><span class="s">"nodisplay"</span> <span class="na">side</span><span class="o">=</span><span class="s">"left"</span><span class="p">></span> <span class="p"><</span><span class="nt">div</span> <span class="na">role</span><span class="o">=</span><span class="s">"button"</span> <span class="na">aria-label</span><span class="o">=</span><span class="s">"close sidebar"</span> <span class="na">on</span><span class="o">=</span><span class="s">"tap:sidebar1.toggle"</span> <span class="na">tabindex</span><span class="o">=</span><span class="s">"0"</span> <span class="na">class</span><span class="o">=</span><span class="s">"close-sidebar"</span><span class="p">></span>✕<span class="p"></</span><span class="nt">div</span><span class="p">></span> <span class="p"><</span><span class="nt">ul</span> <span class="na">class</span><span class="o">=</span><span class="s">"sidebar"</span><span class="p">></span> <span class="p"><</span><span class="nt">li</span><span class="p">><</span><span class="nt">a</span> <span class="na">href</span><span class="o">=</span><span class="s">"#"</span><span class="p">></span>Example 1<span class="p"></</span><span class="nt">a</span><span class="p">></</span><span class="nt">li</span><span class="p">></span> <span class="p"><</span><span class="nt">li</span><span class="p">><</span><span class="nt">a</span> <span class="na">href</span><span class="o">=</span><span class="s">"#"</span><span class="p">></span>Example 2<span class="p"></</span><span class="nt">a</span><span class="p">></</span><span class="nt">li</span><span class="p">></span> <span class="p"><</span><span class="nt">li</span><span class="p">><</span><span class="nt">a</span> <span class="na">href</span><span class="o">=</span><span class="s">"#"</span><span class="p">></span>Example 3<span class="p"></</span><span class="nt">a</span><span class="p">></</span><span class="nt">li</span><span class="p">></span> <span class="p"></</span><span class="nt">ul</span><span class="p">></span> <span class="p"></</span><span class="nt">amp-sidebar</span><span class="p">></span> </code></pre></div> <p>Our sidebar will be hidden, but when the user taps the hamburger icon, the menu will appear from the left side of the screen. To close the menu, the user can tap the X icon.</p> <p>Finally, <strong>add</strong> these style rules to your inline CSS:</p> <div class="-ta"><pre><span></span><code><span class="p">.</span><span class="nc">hamburger</span> <span class="p">{</span> <span class="k">padding-left</span><span class="p">:</span> <span class="mi">10</span><span class="kt">px</span><span class="p">;</span> <span class="p">}</span> <span class="p">.</span><span class="nc">sidebar</span> <span class="p">{</span> <span class="k">padding</span><span class="p">:</span> <span class="mi">10</span><span class="kt">px</span><span class="p">;</span> <span class="k">margin</span><span class="p">:</span> <span class="mi">0</span><span class="p">;</span> <span class="p">}</span> <span class="p">.</span><span class="nc">sidebar</span> <span class="o">></span> <span class="nt">li</span> <span class="p">{</span> <span class="k">list-style</span><span class="p">:</span> <span class="kc">none</span><span class="p">;</span> <span class="k">margin-bottom</span><span class="p">:</span><span class="mi">10</span><span class="kt">px</span><span class="p">;</span> <span class="p">}</span> <span class="p">.</span><span class="nc">sidebar</span> <span class="nt">a</span> <span class="p">{</span> <span class="k">text-decoration</span><span class="p">:</span> <span class="kc">none</span><span class="p">;</span> <span class="p">}</span> <span class="p">.</span><span class="nc">close-sidebar</span> <span class="p">{</span> <span class="k">font-size</span><span class="p">:</span> <span class="mf">1.5</span><span class="kt">em</span><span class="p">;</span> <span class="k">padding-left</span><span class="p">:</span> <span class="mi">5</span><span class="kt">px</span><span class="p">;</span> <span class="p">}</span> </code></pre></div> <p>Okay, let's see our sidebar. <strong>Refresh</strong> and reload your AMP page. You should see something like this:</p> <p></p><figure class="alignment-wrapper center half margin- shadow"> <amp-img src="/static/img/docs/tutorials/tut-advanced-navigate-sidebar.gif" width="412" height="384" layout="responsive" alt class="i-amphtml-layout-responsive i-amphtml-layout-size-defined" i-amphtml-layout="responsive"><i-amphtml-sizer slot="i-amphtml-svc" style="display:block;padding-top:93.2039%"></i-amphtml-sizer></amp-img> <figcaption>Sidebar menu navigation</figcaption></figure><p></p> <p>Our page is looking great! Let's add one final touch—a custom font.</p> </section> <section class="-t"> <div class="ap--chapter-indicator"> <a href="/documentation/guides-and-tutorials/start/add_advanced/tracking_data/" class="-n -s ap--previous"> <div class="ap-a-ico -i"> <svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#internal"/></svg> </div> <span class="-r">Previous chapter</span> </a> <a href="/documentation/guides-and-tutorials/start/add_advanced/fonts/" class="-n -s ap--next"> <span class="-r">Next chapter</span> <div class="ap-a-ico -i"> <svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#internal"/></svg> </div> </a> </div> </section> </div> </main> <amp-sidebar id="sidebar-left" class="ap--ampsidebar i-amphtml-layout-nodisplay" layout="nodisplay" side="left" hidden="hidden" i-amphtml-layout="nodisplay"> <nav class="ap--ampsidebar-toolbar" toolbar="(min-width: 768px)" toolbar-target="ap--sidebar-content"> <ul> <div class="ap-m-format-toggle"> <button class="ap-m-format-toggle-selected ap-m-format-toggle-link-websites"> <span class="ap-a-ico"> <svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#amp-websites"/></svg> </span> <span>websites</span> <span class="ap-a-ico ap-m-format-toggle-angle"> <svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-solid"/></svg> </span> </button> <div class="ap-m-format-toggle-formats"> <a class="ap-m-format-toggle-link ap-m-format-toggle-link-stories" href="/documentation/guides-and-tutorials/stories/start/add_advanced/navigating/"> <span class="ap-a-ico"> <svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#amp-stories"/></svg> </span> <span>stories</span> </a> <a class="ap-m-format-toggle-link ap-m-format-toggle-link-ads" href="/documentation/guides-and-tutorials/ads/start/add_advanced/navigating/"> <span class="ap-a-ico"> <svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#amp-ads"/></svg> </span> <span>ads</span> </a> <a class="ap-m-format-toggle-link ap-m-format-toggle-link-email" href="/documentation/guides-and-tutorials/email/start/add_advanced/navigating/"> <span class="ap-a-ico"> <svg><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#amp-email"/></svg> </span> <span>email</span> </a> </div> </div> <div class="ap-o-sidebar-default"> <div class="ap-o-sidebar"> <div class="nav"> <ul class="nav-list level-1"> <li class="nav-item active level-1"> <span class="nav-link"> <span>Start</span> </span> <input class="nav-trigger" type="checkbox" checked> <div class="nav-icon"> <svg class="ap-a-ico"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-solid"/></svg> </div> <ul class="nav-list level-2"> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/create/"> <span>Create your first AMP</span> <span class="nav-link-lastword">Page<svg class="ap-a-ico nav-type-icon"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#tutorial"/></svg></span> </a> <input class="nav-trigger" type="checkbox"> <div class="nav-icon"> <svg class="ap-a-ico light"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-light"/></svg> </div> <ul class="nav-list level-3"> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress "></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/create/basic_markup/"> Starter code </a> </li> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress "></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/create/include_image/"> Include an image </a> </li> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress "></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/create/presentation_layout/"> Adding style </a> </li> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress "></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/create/prepare_for_discovery/"> Plug and play components </a> </li> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress "></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/create/actions_events/"> Actions and events </a> </li> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress "></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/create/preview_and_validate/"> Preview and validate </a> </li> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress "></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/create/publish/"> Keep going </a> </li> </ul> </li> <li class="nav-item-tutorial-divider"></li> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/converting/"> <span>Convert HTML to</span> <span class="nav-link-lastword">AMP<svg class="ap-a-ico nav-type-icon"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#tutorial"/></svg></span> </a> <input class="nav-trigger" type="checkbox"> <div class="nav-icon"> <svg class="ap-a-ico light"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-light"/></svg> </div> <ul class="nav-list level-3"> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress "></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/converting/setting-up/"> Setting up </a> </li> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress "></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/converting/building-page/"> Building a regular HTML page </a> </li> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress "></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/converting/resolving-errors/"> Resolving validation errors </a> </li> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress "></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/converting/discoverable/"> Making your page discoverable </a> </li> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress "></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/converting/congratulations/"> Congratulations! </a> </li> </ul> </li> <li class="nav-item active level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/add_advanced/"> <span>Add advanced AMP</span> <span class="nav-link-lastword">features<svg class="ap-a-ico nav-type-icon"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#tutorial"/></svg></span> </a> <input class="nav-trigger" type="checkbox" checked> <div class="nav-icon"> <svg class="ap-a-ico light"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-light"/></svg> </div> <ul class="nav-list level-3"> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress ap-m-tutorial-progress-finished"></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/add_advanced/setting_up/"> Setting up </a> </li> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress ap-m-tutorial-progress-finished"></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/add_advanced/review_code/"> Reviewing the starter code </a> </li> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress ap-m-tutorial-progress-finished"></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/add_advanced/adding_components/"> Adding extended AMP components </a> </li> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress ap-m-tutorial-progress-finished"></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/add_advanced/adding_carousels/"> Adding carousels </a> </li> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress ap-m-tutorial-progress-finished"></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/add_advanced/tracking_data/"> Tracking engagement with analytics </a> </li> <li class="nav-item active level-3" autoscroll> <div class="ap-m-tutorial-progress "></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/add_advanced/navigating/"> Navigating your site </a> </li> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress "></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/add_advanced/fonts/"> Adding fonts </a> </li> <li class="nav-item level-3"> <div class="ap-m-tutorial-progress "></div> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/start/add_advanced/congratulations/"> Congratulations! </a> </li> </ul> </li> </ul> </li> <li class="nav-item level-1"> <span class="nav-link"> <span>Learn</span> </span> <input class="nav-trigger" type="checkbox"> <div class="nav-icon"> <svg class="ap-a-ico"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-solid"/></svg> </div> <ul class="nav-list level-2"> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/learn/amp-actions-and-events/"> Actions and events </a> </li> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/learn/common_attributes/"> Common element attributes </a> </li> <li class="nav-item level-2"> <span class="nav-link"> <span>AMP HTML Specification</span> </span> <input class="nav-trigger" type="checkbox"> <div class="nav-icon"> <svg class="ap-a-ico light"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-light"/></svg> </div> <ul class="nav-list level-3"> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/learn/spec/amp-boilerplate/"> AMP Boilerplate Code </a> </li> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/learn/spec/amp-html-responsive-attributes/"> AMP HTML Responsive Attributes </a> </li> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/learn/spec/amp-video-interface/"> Video in AMP </a> </li> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/learn/spec/amphtml/"> AMP HTML Specification </a> </li> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/learn/spec/release-schedule/"> AMP Release Schedule </a> </li> </ul> </li> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/learn/experimental/"> Enable experimental features </a> </li> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/learn/amp-html-layout/"> <span>AMP's Layout System</span> </a> <input class="nav-trigger" type="checkbox"> <div class="nav-icon"> <svg class="ap-a-ico light"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-light"/></svg> </div> <ul class="nav-list level-3"> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/learn/amp-html-layout/"> AMPHTML Layout System </a> </li> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/learn/amp-html-layout/layouts_demonstrated/"> Demonstrating AMP layouts </a> </li> </ul> </li> <li class="nav-item level-2"> <span class="nav-link"> <span>Validation Workflow</span> </span> <input class="nav-trigger" type="checkbox"> <div class="nav-icon"> <svg class="ap-a-ico light"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-light"/></svg> </div> <ul class="nav-list level-3"> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/learn/validation-workflow/validate_amp/"> Validate AMP pages </a> </li> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/learn/validation-workflow/validation_errors/"> AMP validation errors </a> </li> </ul> </li> <li class="nav-item level-2"> <span class="nav-link"> <span>AMP Caches & CORS</span> </span> <input class="nav-trigger" type="checkbox"> <div class="nav-icon"> <svg class="ap-a-ico light"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-light"/></svg> </div> <ul class="nav-list level-3"> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/learn/amp-caches-and-cors/amp-cache-debugging/"> Debug AMP Cache issues </a> </li> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/learn/amp-caches-and-cors/amp-cors-requests/"> CORS in AMP </a> </li> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/learn/amp-caches-and-cors/how_amp_pages_are_cached/"> How AMP pages are cached </a> </li> <li class="nav-item level-3"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/learn/amp-caches-and-cors/amp-cache-urls/"> AMP Cache URL Format and Request Handling </a> </li> </ul> </li> <li class="nav-item level-2"> <a class="nav-link" href="/documentation/guides-and-tutorials/websites/learn/combine-amp-pwa/"> How AMP and PWA relate to each other </a> </li> </ul> </li> <li class="nav-item level-1"> <span class="nav-link"> <span>Develop</span> </span> <input class="nav-trigger" type="checkbox"> <div class="nav-icon"> <svg class="ap-a-ico"><use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#angle-down-solid"/></svg> </div> <ul class="nav-list level-2"> <li class="nav-item level-2"> <a class="nav-link" 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