gt;&lt;script type="module" src="index.js" defer&gt;</code></dt>
                <dd>The main JavaScript file is in the <code>&lt;head&gt;</code>, and will bootstrap the web components as explained on the components page. The use of <code>defer</code> allows it to download while the rest of the page is loading and get executed at the end.</dd>
                <dt><code>&lt;body&gt;&lt;noscript&gt;</code></dt>
                <dd>Because web components don't work without JavaScript it is good practice to inc