The Tor Browser / file revision

 /* 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/. */

 /* This file exists purely because we need the styling for input[type=number]

  * to apply only if the pref dom.forms.number is true. Once bug 677302 is

  * fixed this rule can move back to forms.css.

  */

 input[type="number"] {

   -moz-appearance: number-input;

   /* Has to revert some properties applied by the generic input rule. */

   -moz-binding: none;

   width: 149px; /* to match type=text */

 }