   <span>dynamic item</span>
    </template>

    <template id="x-dynamic-container">
      <style>
        :host {
          --mixin: {
            background-color: rgb(123, 123, 123);
          };
        }
      </style>
      <x-dynamic></x-dynamic>
    </template>

    <script>
    suite('Mixin Ordering', function() {
      suiteSetup(function() {
        makeElement('x-item-a');
        makeElement('x-menu');
        makeElement('x-group');
        makeElement('x-menu-group');
        makeElement('x-