gecko/browser/base/content/aboutcerterror/aboutCertError.css

/* 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/. */

/* Logical CSS rules belong here, but presentation & theming rules
   should live in the CSS of the appropriate theme */

#technicalContentText {
  overflow: auto;
  white-space: pre-wrap;
}

.expander[hidden],
.expander[hidden] + *,
.expander[collapsed] + * {
  display: none;
}