gecko-dev/browser/base/content/abouthome/aboutHome.css

%if 0
/* 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/. */
%endif

html {
  font: message-box;
  font-size: 100%;
  background-color: hsl(0,0%,95%);
  color: #000;
  height: 100%;
}

body {
  margin: 0;
  display: -moz-box;
  -moz-box-orient: vertical;
  width: 100%;
  height: 100%;
}

input,
button {
  font-size: inherit;
  font-family: inherit;
}

a {
  color: -moz-nativehyperlinktext;
  text-decoration: none;
}

.spacer {
  -moz-box-flex: 1;
}

#topSection {
  text-align: center;
}

#brandLogo {
  height: 192px;
  width: 192px;
  margin: 22px auto 31px;
  background-image: url("chrome://branding/content/about-logo.png");
  background-size: 192px auto;
  background-position: center center;
  background-repeat: no-repeat;
}

#searchForm,
#snippets {
  width: 470px;
}

#searchForm {
  display: -moz-box;
}

#searchLogoContainer {
  display: -moz-box;
  -moz-box-align: center;
  padding-top: 2px;
  -moz-padding-end: 8px;
}

#searchLogoContainer[hidden] {
  display: none;
}

#searchEngineLogo {
  display: inline-block;
  height: 28px;
  width: 70px;
  min-width: 70px;
}

#searchIcon {
  border: 1px solid transparent;
  -moz-margin-end: 5px;
  height: 38px;
  width: 38px;
  background: url("chrome://browser/skin/magnifier.png") center center no-repeat;
  background-size: 26px;
}

#searchIcon[active],
#searchIcon:hover {
  background-color: #e9e9e9;
  border-color: rgb(226, 227, 229);
  border-radius: 2.5px;
}

html[searchUIConfiguration="oldsearchui"] #searchIcon {
  display: none;
}

html:not([searchUIConfiguration="oldsearchui"]) #searchText::-moz-placeholder {
  color: transparent;
}

html:not([searchUIConfiguration="oldsearchui"]) #searchLogoContainer {
  display: none;
}

#searchText {
  -moz-box-flex: 1;
  padding: 6px 8px;
  background: hsla(0,0%,100%,.9) padding-box;
  border: 1px solid;
  border-color: hsla(210,54%,20%,.15) hsla(210,54%,20%,.17) hsla(210,54%,20%,.2);
  box-shadow: 0 1px 0 hsla(210,65%,9%,.02) inset,
              0 0 2px hsla(210,65%,9%,.1) inset,
              0 1px 0 hsla(0,0%,100%,.2);
  border-radius: 2.5px 0 0 2.5px;
  color: inherit;
}

#searchText:-moz-dir(rtl) {
  border-radius: 0 2.5px 2.5px 0;
}

#searchText:focus,
#searchText[autofocus] {
  border-color: hsla(206,100%,60%,.6) hsla(206,76%,52%,.6) hsla(204,100%,40%,.6);
}

#searchSubmit {
  -moz-margin-start: -1px;
  background: linear-gradient(hsla(0,0%,100%,.8), hsla(0,0%,100%,.1)) padding-box;
  padding: 0 9px;
  border: 1px solid;
  border-color: hsla(210,54%,20%,.15) hsla(210,54%,20%,.17) hsla(210,54%,20%,.2);
  -moz-border-start: 1px solid transparent;
  border-radius: 0 2.5px 2.5px 0;
  box-shadow: 0 0 2px hsla(0,0%,100%,.5) inset,
              0 1px 0 hsla(0,0%,100%,.2);
  color: inherit;
  cursor: pointer;
  transition-property: background-color, border-color, box-shadow;
  transition-duration: 150ms;
}

#searchSubmit:-moz-dir(rtl) {
  border-radius: 2.5px 0 0 2.5px;
}

#searchText:focus + #searchSubmit,
#searchText + #searchSubmit:hover,
#searchText[autofocus] + #searchSubmit {
  border-color: #59b5fc #45a3e7 #3294d5;
  color: white;
}

#searchText:focus + #searchSubmit,
#searchText[autofocus] + #searchSubmit {
  background-image: linear-gradient(#4cb1ff, #1793e5);
  box-shadow: 0 1px 0 hsla(0,0%,100%,.2) inset,
              0 0 0 1px hsla(0,0%,100%,.1) inset,
              0 1px 0 hsla(210,54%,20%,.03);
}

#searchText + #searchSubmit:hover {
  background-image: linear-gradient(#66bdff, #0d9eff);
  box-shadow: 0 1px 0 hsla(0,0%,100%,.2) inset,
              0 0 0 1px hsla(0,0%,100%,.1) inset,
              0 1px 0 hsla(210,54%,20%,.03),
              0 0 4px hsla(206,100%,20%,.2);
}

#searchText + #searchSubmit:hover:active {
  box-shadow: 0 1px 1px hsla(211,79%,6%,.1) inset,
              0 0 1px hsla(211,79%,6%,.2) inset;
  transition-duration: 0ms;
}

#defaultSnippet1,
#defaultSnippet2,
#rightsSnippet {
  display: block;
  min-height: 38px;
  background: 30px center no-repeat;
  padding: 6px 0;
  -moz-padding-start: 79px;
}

#rightsSnippet[hidden] {
  display: none;
}

#defaultSnippet1:-moz-dir(rtl),
#defaultSnippet2:-moz-dir(rtl),
#rightsSnippet:-moz-dir(rtl) {
  background-position: right 30px center;
}

#defaultSnippet1 {
  background-image: url("chrome://browser/content/abouthome/snippet1.png");
}

#defaultSnippet2 {
  background-image: url("chrome://browser/content/abouthome/snippet2.png");
}

#snippets {
  display: inline-block;
  text-align: start;
  margin: 12px 0;
  color: #3c3c3c;
  font-size: 75%;
  /* 12px is the computed font size, 15px the computed line height of the snippets
     with Segoe UI on a default Windows 7 setup. The 15/12 multiplier approximately
     converts em from units of font-size to units of line-height. The goal is to
     preset the height of a three-line snippet to avoid visual moving/flickering as
     the snippets load. */
  min-height: calc(15/12 * 3em);
}

#launcher {
  display: -moz-box;
  -moz-box-align: center;
  -moz-box-pack: center;
  width: 100%;
  background-color: hsla(0,0%,0%,.03);
  border-top: 1px solid hsla(0,0%,0%,.03);
  box-shadow: 0 1px 2px hsla(0,0%,0%,.02) inset,
              0 -1px 0 hsla(0,0%,100%,.25);
}

#launcher:not([session]),
body[narrow] #launcher[session] {
  display: block; /* display separator and restore button on separate lines */
  text-align: center;
  white-space: nowrap; /* prevent navigational buttons from wrapping */
}

.launchButton {
  display: -moz-box;
  -moz-box-orient: vertical;
  margin: 16px 1px;
  padding: 14px 6px;
  min-width: 88px;
  max-width: 176px;
  max-height: 85px;
  vertical-align: top;
  white-space: normal;
  background: transparent padding-box;
  border: 1px solid transparent;
  border-radius: 2.5px;
  color: #525c66;
  font-size: 75%;
  cursor: pointer;
  transition-property: background-color, border-color, box-shadow;
  transition-duration: 150ms;
}

body[narrow] #launcher[session] > .launchButton {
  margin: 4px 1px;
}

.launchButton:hover {
  background-color: hsla(211,79%,6%,.03);
  border-color: hsla(210,54%,20%,.15) hsla(210,54%,20%,.17) hsla(210,54%,20%,.2);
}

.launchButton:hover:active {
  background-image: linear-gradient(hsla(211,79%,6%,.02), hsla(211,79%,6%,.05));
  border-color: hsla(210,54%,20%,.2) hsla(210,54%,20%,.23) hsla(210,54%,20%,.25);
  box-shadow: 0 1px 1px hsla(211,79%,6%,.05) inset,
              0 0 1px hsla(211,79%,6%,.1) inset;
  transition-duration: 0ms;
}

.launchButton[hidden],
#launcher:not([session]) > #restorePreviousSessionSeparator,
#launcher:not([session]) > #restorePreviousSession {
  display: none;
}

#restorePreviousSessionSeparator {
  width: 3px;
  height: 116px;
  margin: 0 10px;
  background-image: linear-gradient(hsla(0,0%,100%,0), hsla(0,0%,100%,.35), hsla(0,0%,100%,0)),
                    linear-gradient(hsla(211,79%,6%,0), hsla(211,79%,6%,.2), hsla(211,79%,6%,0)),
                    linear-gradient(hsla(0,0%,100%,0), hsla(0,0%,100%,.35), hsla(0,0%,100%,0));
  background-position: left top, center, right bottom;
  background-size: 1px auto;
  background-repeat: no-repeat;
}

body[narrow] #restorePreviousSessionSeparator {
  margin: 0 auto;
  width: 512px;
  height: 3px;
  background-image: linear-gradient(to right, hsla(0,0%,100%,0), hsla(0,0%,100%,.35), hsla(0,0%,100%,0)),
                    linear-gradient(to right, hsla(211,79%,6%,0), hsla(211,79%,6%,.2), hsla(211,79%,6%,0)),
                    linear-gradient(to right, hsla(0,0%,100%,0), hsla(0,0%,100%,.35), hsla(0,0%,100%,0));
  background-size: auto 1px;
}

#restorePreviousSession {
  max-width: none;
  font-size: 90%;
}

body[narrow] #restorePreviousSession {
  font-size: 80%;
}

.launchButton::before {
  display: block;
  width: 32px;
  height: 32px;
  margin: 0 auto 6px;
  line-height: 0; /* remove extra vertical space due to non-zero font-size */
}

#downloads::before {
  content: url("chrome://browser/content/abouthome/downloads.png");
}

#bookmarks::before {
  content: url("chrome://browser/content/abouthome/bookmarks.png");
}

#history::before {
  content: url("chrome://browser/content/abouthome/history.png");
}

#apps::before {
  content: url("chrome://browser/content/abouthome/apps.png");
}

#addons::before {
  content: url("chrome://browser/content/abouthome/addons.png");
}

#sync::before {
  content: url("chrome://browser/content/abouthome/sync.png");
}

#settings::before {
  content: url("chrome://browser/content/abouthome/settings.png");
}

#restorePreviousSession::before {
  content: url("chrome://browser/content/abouthome/restore-large.png");
  height: 48px;
  width: 48px;
  display: inline-block; /* display on same line as text label */
  vertical-align: middle;
  margin-bottom: 0;
  -moz-margin-end: 8px;
}

#restorePreviousSession:-moz-dir(rtl)::before {
  transform: scaleX(-1);
}

body[narrow] #restorePreviousSession::before {
  content: url("chrome://browser/content/abouthome/restore.png");
  height: 32px;
  width: 32px;
}

#aboutMozilla {
  display: block;
  position: relative; /* pin wordmark to edge of document, not of viewport */
  -moz-box-ordinal-group: 0;
  opacity: .5;
  transition: opacity 150ms;
}

#aboutMozilla:hover {
  opacity: 1;
}

#aboutMozilla::before {
  content: url("chrome://browser/content/abouthome/mozilla.png");
  display: block;
  position: absolute;
  top: 12px;
  right: 12px;
  width: 69px;
  height: 19px;
}

/* [HiDPI]
 * At resolutions above 1dppx, prefer downscaling the 2x Retina graphics
 * rather than upscaling the original-size ones (bug 818940).
 */
@media not all and (max-resolution: 1dppx) {
  #brandLogo {
    background-image: url("chrome://branding/content/about-logo@2x.png");
  }

  #searchIcon {
    background-image: url("chrome://browser/skin/magnifier@2x.png");
  }

  #defaultSnippet1,
  #defaultSnippet2,
  #rightsSnippet {
    background-size: 40px;
  }

  #defaultSnippet1 {
    background-image: url("chrome://browser/content/abouthome/snippet1@2x.png");
  }

  #defaultSnippet2 {
    background-image: url("chrome://browser/content/abouthome/snippet2@2x.png");
  }

  .launchButton::before,
  #aboutMozilla::before {
    transform: scale(.5);
    transform-origin: 0 0;
  }

  .launchButton:-moz-dir(rtl)::before,
  #aboutMozilla:-moz-dir(rtl)::before {
    transform: scale(.5) translateX(32px);
  }

  #downloads::before {
    content: url("chrome://browser/content/abouthome/downloads@2x.png");
  }

  #bookmarks::before {
    content: url("chrome://browser/content/abouthome/bookmarks@2x.png");
  }

  #history::before {
    content: url("chrome://browser/content/abouthome/history@2x.png");
  }

  #apps::before {
    content: url("chrome://browser/content/abouthome/apps@2x.png");
  }

  #addons::before {
    content: url("chrome://browser/content/abouthome/addons@2x.png");
  }

  #sync::before {
    content: url("chrome://browser/content/abouthome/sync@2x.png");
  }

  #settings::before {
    content: url("chrome://browser/content/abouthome/settings@2x.png");
  }

  #restorePreviousSession::before {
    content: url("chrome://browser/content/abouthome/restore-large@2x.png");
  }

  body[narrow] #restorePreviousSession::before {
    content: url("chrome://browser/content/abouthome/restore@2x.png");
  }

  #restorePreviousSession:-moz-dir(rtl)::before {
    transform: scale(-0.5, 0.5) translateX(24px);
    transform-origin: top center;
  }

  #aboutMozilla::before {
    content: url("chrome://browser/content/abouthome/mozilla@2x.png");
  }
}