de-visible-line</code> is used to expand/collapse
                    <code class="astro-3HS6YOU4">.app-side</code> element.
                  </p>

                  <hr class="astro-3HS6YOU4">

                  <h4 class="bg-secondary p-2 astro-3HS6YOU4" id="app-main">app-main</h4>
                  <h5 class="astro-3HS6YOU4">Main Heading, Main Content, Main Footer</h5>
                    <p class="astro-3HS6YOU4">
                      <code class="astro-3HS6YOU4">.main-heading</code>, <code class="ast