chromium/tools/polymer/tests/css_to_wrapper/foo_style.css

/* Copyright 2022 The Chromium Authors
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file. */

/* #css_wrapper_metadata_start
 *
 * #type=style
 * #import=./other1.css.js
 * #import=./other2.css.js
 * #include=other1 other2
 *
 * #css_wrapper_metadata_end */
div {
  font-size: 2rem;
  --foo-bar: calc(var(--foo-bar1)
      - var(--foo-bar2)
      - 3 * var(--foo-bar3));
}