UXP/browser/themes/shared/privatebrowsing/aboutPrivateBrowsing.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/. */

@import url("chrome://global/skin/in-content/info-pages.css");

:root {
  --color-grey-lightest: #fbfbfb;
  --color-grey: #b1b1b1;

  --color-blue: #0996f8;
  --color-blue-dark: #0670cc;
  --color-blue-darker: #005bab;

  --icon-margin: 64px;
}

html.private {
  --in-content-page-color: #beb8cc;
  --in-content-text-color: #beb8cc;
  --in-content-page-background: #1c023c;
}

body {
  padding: 40px;
}

a:link {
  color: var(--color-blue);
  text-decoration: none;
}

a:hover {
  color: var(--color-blue-dark);
  text-decoration: underline;
}

a:hover:active {
  color: var(--color-blue-darker);
}

a:visited {
  color: var(--color-blue-darker);
}

.about-content-container {
  max-width: 780px;
}

.section-main {
  margin-bottom: 48px;
  margin-inline-start: var(--icon-margin);
  padding-inline-start: 24px;
}

.section-main:last-child {
  margin-bottom: 0;
}

p {
  line-height: 1.5em;
}

.list-row {
  overflow: auto;
}

.list-row > ul > li {
  float: left;
  width: 220px;
  line-height: 1.5em;
  margin-inline-start: 1em;
  margin-bottom: 0;
}

.list-row > ul > li:dir(rtl) {
  float: right;
}

.title {
  background-image: url("chrome://browser/skin/privatebrowsing/private-browsing.svg");
  background-size: 64px;
  background-position: left, center;
  font-weight: lighter;
  line-height: 1.5em;
  min-height: 64px;
  margin-inline-start: 0;
  padding-inline-start: calc(var(--icon-margin) + 24px);
}

.title:dir(rtl) {
  background-position: right, center;
}

.about-subheader {
  display: flex;
  align-items: center;
  font-size: 1.5em;
  font-weight: lighter;
  min-height: 32px;
  background-image: url("chrome://browser/skin/privatebrowsing/tracking-protection.svg");
  background-repeat: no-repeat;
  background-size: 32px;
  margin-inline-start: calc(var(--icon-margin) - 32px);
  padding-inline-start: 56px;
}

.about-subheader:dir(rtl) {
  background-position: right;
}

.about-subheader.tp-off {
  background-image: url("chrome://browser/skin/privatebrowsing/tracking-protection-off.svg");
}

.about-info {
  font-size: .875em;
}

.tpTitle {
  margin-inline-end: 12px;
}

.private strong {
  color: var(--color-grey-lightest);
  font-weight: normal;
}

a.button {
  padding: 5px 40px;
  background-color: #381e59;
  border: 1px solid #43256a;
  border-radius: 4px;
  text-decoration: none;
  display: inline-block;
}

/**
 * We want to hide the checkbox in lieu of the toggle-btn
 * "slider toggle". We need to make the toggle keyboard
 * focusable, however, which is not possible if it's
 * display:none. We work around this by making the toggle
 * invisible but still present in the display list, allowing
 * it to receive keyboard events. When it is focused by keyboard,
 * we use the -moz-focusring selector on the invisible checkbox
 * to show a focus ring around the slider toggle.
 */
.toggle-input {
  opacity: 0;
  width: 0;
  pointer-events: none;
  position: absolute;
}

.toggle + .toggle-btn {
  box-sizing: border-box;
  cursor: pointer;
  min-width: 60px;
  height: 24px;
  border-radius: 12px;
  background-color: var(--color-grey);
  border: 1px var(--color-grey) solid;
  padding: 2px;
}

.toggle + .toggle-btn::after,
.toggle + .toggle-btn::before {
  position: relative;
  display: block;
  content: "";
  width: 19px;
  height: 100%;
}

.toggle + .toggle-btn::after {
  left: 0;
  box-shadow: 0 0 1px 1px hsla(0, 0%, 0%, .1),
              0 1px 0 hsla(0, 0%, 0%, .2);
  border-radius: 50%;
  background: white;
  transition: left .2s ease;
}

.toggle + .toggle-btn::before {
  float: left;
  left: 9px;
  visibility: hidden;
  background-size: 16px;
  background-repeat: no-repeat;
  background-color: transparent;
  background-image: url("chrome://browser/skin/privatebrowsing/check.svg");
}

.toggle + .toggle-btn:dir(rtl)::after {
  left: auto;
  right: 0;
  transition-property: right;
}

.toggle + .toggle-btn:dir(rtl)::before {
  float: right;
  left: auto;
  right: 9px;
}

.toggle:checked + .toggle-btn {
  background: #3fc455;
  border: 1px solid #269939;
}

.toggle:checked + .toggle-btn::after {
  left: 35px;
}

.toggle:checked + .toggle-btn:dir(rtl)::after {
  right: 35px;
}

.toggle:checked + .toggle-btn::before {
  visibility: visible;
}

.toggle:-moz-focusring + .toggle-btn {
  outline: 2px solid rgba(0, 149, 221, 0.5);
  outline-offset: 1px;
  -moz-outline-radius: 2px;
}