CSSContainerRule.webidl

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/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this file,

 * You can obtain one at http://mozilla.org/MPL/2.0/.

 * The origin of this IDL file is

 * https://drafts.csswg.org/css-contain-3/#the-csscontainerrule-interface

*/

// https://drafts.csswg.org/css-contain-3/#the-csscontainerrule-interface

[Exposed=Window, Pref="layout.css.container-queries.enabled"]

interface CSSContainerRule : CSSConditionRule {

  readonly attribute UTF8String containerName;

  readonly attribute UTF8String containerQuery;

  // Performs a container query look-up for an element.

  [ChromeOnly] Element? queryContainerFor(Element element);

};