1 files changed, 13 insertions, 0 deletions
diff --git a/dom/webidl/CSSSupportsRule.webidl b/dom/webidl/CSSSupportsRule.webidl
new file mode 100644
index 0000000000..3040f34507
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+++ b/dom/webidl/CSSSupportsRule.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-conditional/#the-csssupportsrule-interface
+ */
+
+// https://drafts.csswg.org/css-conditional/#the-csssupportsrule-interface
+[Exposed=Window]
+interface CSSSupportsRule : CSSConditionRule {
+};