pp-toolbar">
  <template>
    <style>
      :host {
        @apply(--layout-horizontal);
        @apply(--layout-center);
        position: relative;
        height: 64px;
        padding: 0 16px;
        pointer-events: none;
        font-size: var(--app-toolbar-font-size, 20px);
      }

      ::content > * {
        pointer-events: auto;
      }

      ::content > paper-icon-button {
        /* paper-icon-button/issues/33 */
        font-size: 0;
      }

      ::content > [main-title],
      ::content >