toolkit/content/widgets/marquee.css


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/* 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/. */

.outerDiv {
  overflow: hidden;
  width: -moz-available;
}

.horizontal > .innerDiv {
  width: max-content;
  /* We want to create overflow of twice our available space. */
  padding: 0 100%;
}

/* disable scrolling in contenteditable */
:host(:read-write) .innerDiv {
  padding: 0 !important;
}

/* When printing or when the user doesn't want movement, we disable scrolling */
@media print, (prefers-reduced-motion) {
  .innerDiv {
    padding: 0 !important;
  }
}