@vaadin/vaadin-lumo-styles/src/components/upload-icon.css

Lumo is a design system foundation for modern web applications, used by Vaadin components

/**
 * @license
 * Copyright (c) 2000 - 2026 Vaadin Ltd.
 * This program is available under Apache License Version 2.0, available at https://vaadin.com/license/
 */
@media lumo_components_upload-icon {
  :host {
    display: inline-block;
  }

  :host::before {
    content: var(--lumo-icons-upload);
    font-family: lumo-icons;
    font-size: var(--lumo-icon-size-m);
    line-height: 1;
    vertical-align: -0.25em;
    background-color: transparent;
    mask-image: none;
  }
}