text: import "../../../vaadin-lumo-styles/font-icons.js";
  import "../../../vaadin-lumo-styles/mixins/field-button.js";
  import "../../../vaadin-text-field/theme/lumo/vaadin-text-field.js";
  import { html } from "@polymer/polymer/lib/utils/html-tag.js";
  const $_documentContainer = html`<dom-module id="lumo-combo-box" theme-for="vaadin-combo-box">
    <template>
      <style include="lumo-field-button">
        :host {
          outline: none;
        }
  
        [part="toggle-button"]::before {
          content: var(--lumo-icons-dropdown);
        }
      </style>
    </template>
  </dom-module>`;
  document.head.appendChild($_documentContainer.content);