lude a noscript warning to users that have JavaScript disabled. This warning only needs to be on pages with web components. If you don't want to show anything except the warning, see the template pattern below.</dd>
                <dt><code>&lt;body&gt;&lt;header/main/footer&gt;</code></dt>
                <dd>The page's markup should be organized using <a href="https://developer.mozilla.org/en-US/blog/aria-accessibility-html-landmark-roles/">HTML landmarks</a>. Landmarks when used properly help organize t