/*
 * This is a user style sheet to do what it can to
 * reveal clickjacking attempts. This is in no way
 * a silver bullet to protect against clickjacking.
 *
 * @file clickjane.css
 * @license GPL3
 *
 *  Copyright 2008  Meitar Moscovitz  (email : meitar@maymay.net)
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */

/*
 * Clickjacking very commonly uses a transparent iframe.
 * I can't imagine a modern web site that would ever do
 * this, so let's just never allow transparent iframes.
 */
iframe {
    filter: alpha(opacity=100) !important; /* for IE */
    opacity: 1 !important; /* for conforming browsers */
}