@vaadin/vaadin-lumo-styles/src/components/popover-overlay.css

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

/**
 * @license
 * Copyright (c) 2017 - 2026 Vaadin Ltd.
 * This program is available under Apache License Version 2.0, available at https://vaadin.com/license/
 */
@media lumo_components_popover-overlay {
  :host {
    --_arrow-size: var(--vaadin-popover-arrow-size, 0.75rem);
    --_default-offset: var(--lumo-space-xs);
  }

  [part='overlay'] {
    overflow: visible;
    border: none;
  }

  [part='content'] {
    padding: var(--lumo-space-xs) var(--lumo-space-s);
  }
}