suite/themes/modern/communicator/preferences.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/. */

/* Styles used by all preference windows and panes of SeaMonkey */

@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul");

/* ::::: Main Window ::::: */

prefwindow {
  padding: 7px 5px 5px;
}

prefpane,
.prefWindow-dlgbuttons {
  padding: 0px;
}