ode-content</span><span class="qm-api-header-tags"></span></div></div></div></div><div class="qm-api-collapsible-content"><div class="qm-api-item-content"><div class="qm-api-description"><div class="qm-html-paragraph">The class to give to any content within a tree node, should be placed directly inside a  <code class="qm-code-highlight-code qm-code-font">hx-tree-node</code>  that doesn&#39;t include  <code class="qm-code-highlight-code qm-code-font">hx-tree-node-parent</code>  or  <code class="qm-code-highl