path: root/layout/style/res/html.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/. */

@namespace url(http://www.w3.org/1999/xhtml); /* set default namespace to HTML */
@namespace xul url(http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul);

/* bidi */

:-moz-has-dir-attr {
  unicode-bidi: isolate;
}
:-moz-dir-attr-rtl {
  direction: rtl;
}
:-moz-dir-attr-ltr {
  direction: ltr;
}

:-moz-dir-attr-like-auto:dir(ltr) { direction: ltr; }
:-moz-dir-attr-like-auto:dir(rtl) { direction: rtl; }

/* To ensure http://www.w3.org/TR/REC-html40/struct/dirlang.html#style-bidi:
 *
 * "When a block element that does not have a dir attribute is transformed to
 * the style of an inline element by a style sheet, the resulting presentation
 * should be equivalent, in terms of bidirectional formatting, to the
 * formatting obtained by explicitly adding a dir attribute (assigned the
 * inherited value) to the transformed element."
 *
 * and the rules in http://dev.w3.org/html5/spec/rendering.html#rendering
 */

address,
article,
aside,
blockquote,
body,
caption,
center,
col,
colgroup,
dd,
dir,
div,
dl,
dt,
fieldset,
figcaption,
figure,
footer,
form,
h1,
h2,
h3,
h4,
h5,
h6,
header,
hgroup,
hr,
html,
legend,
li,
listing,
main,
marquee,
menu,
nav,
noframes,
ol,
p,
plaintext,
pre,
section,
summary,
table,
tbody,
td,
tfoot,
th,
thead,
tr,
ul,
xmp {
  unicode-bidi: isolate;
}

bdi, output {
  unicode-bidi: isolate;
}
/* We need the "bdo:-moz-has-dir-attr" bit because "bdo" has lower
   specificity than the ":-moz-has-dir-attr" selector above. */
bdo, bdo:-moz-has-dir-attr {
  unicode-bidi: isolate-override;
}
textarea:-moz-dir-attr-like-auto,
pre:-moz-dir-attr-like-auto {
    unicode-bidi: plaintext;
}

/* blocks */

article,
aside,
details,
div,
dt,
figcaption,
footer,
form,
header,
hgroup,
html,
main,
nav,
section,
summary {
  display: block;
}

body {
  display: block;
  margin: 8px;
}

p, dl, multicol {
  display: block;
  margin-block-start: 1em;
  margin-block-end: 1em;
}

dd {
  display: block;
  margin-inline-start: 40px;
}

blockquote, figure {
  display: block;
  margin-block-start: 1em;
  margin-block-end: 1em;
  margin-inline-start: 40px;
  margin-inline-end: 40px;
}

address {
  display: block;
  font-style: italic;
}

center {
  display: block;
  text-align: -moz-center;
}

blockquote[type=cite] {
  display: block;
  margin-block-start: 1em;
  margin-block-end: 1em;
  margin-inline-start: 0;
  margin-inline-end: 0;
  padding-inline-start: 1em;
  border-inline-start: solid;
  border-color: blue;
  border-width: thin;
}

span[_moz_quote=true] {
  color: blue;
}

pre[_moz_quote=true] {
  color: blue;
}

h1 {
  display: block;
  font-size: 2em;
  font-weight: bold;
  margin-block-start: .67em;
  margin-block-end: .67em;
}

h2,
:is(article, aside, nav, section)
h1 {
  display: block;
  font-size: 1.5em;
  font-weight: bold;
  margin-block-start: .83em;
  margin-block-end: .83em;
}

h3,
:is(article, aside, nav, section)
:is(article, aside, nav, section)
h1 {
  display: block;
  font-size: 1.17em;
  font-weight: bold;
  margin-block-start: 1em;
  margin-block-end: 1em;
}

h4,
:is(article, aside, nav, section)
:is(article, aside, nav, section)
:is(article, aside, nav, section)
h1 {
  display: block;
  font-size: 1.00em;
  font-weight: bold;
  margin-block-start: 1.33em;
  margin-block-end: 1.33em;
}

h5,
:is(article, aside, nav, section)
:is(article, aside, nav, section)
:is(article, aside, nav, section)
:is(article, aside, nav, section)
h1 {
  display: block;
  font-size: 0.83em;
  font-weight: bold;
  margin-block-start: 1.67em;
  margin-block-end: 1.67em;
}

h6,
:is(article, aside, nav, section)
:is(article, aside, nav, section)
:is(article, aside, nav, section)
:is(article, aside, nav, section)
:is(article, aside, nav, section)
h1 {
  display: block;
  font-size: 0.67em;
  font-weight: bold;
  margin-block-start: 2.33em;
  margin-block-end: 2.33em;
}

listing {
  display: block;
  font-family: -moz-fixed;
  font-size: medium;
  white-space: pre;
  margin-block-start: 1em;
  margin-block-end: 1em;
}

xmp, pre, plaintext {
  display: block;
  font-family: -moz-fixed;
  white-space: pre;
  margin-block-start: 1em;
  margin-block-end: 1em;
}

/* tables */

table {
  display: table;
  border-spacing: 2px;
  border-collapse: separate;
  /* XXXldb do we want this if we're border-collapse:collapse ? */
  box-sizing: border-box;
  text-indent: 0;
}

table[align="left"] {
  float: left;
}

table[align="right"] {
  float: right;
  text-align: start;
}


/* border collapse rules */

  /* Set hidden if we have 'frame' or 'rules' attribute.
     Set it on all sides when we do so there's more consistency
     in what authors should expect */

  /* Put this first so 'border' and 'frame' rules can override it. */
table[rules] {
  border-width: thin;
  border-style: hidden;
}

  /* 'border' before 'frame' so 'frame' overrides
      A border with a given value should, of course, pass that value
      as the border-width in pixels -> attr mapping */

  /* :-moz-table-border-nonzero is like [border]:not([border="0"]) except it
     also checks for other zero-like values according to HTML attribute
     parsing rules */
table:-moz-table-border-nonzero {
  border-width: thin;
  border-style: outset;
}

table[frame] {
  border: thin hidden;
}

/* specificity must beat table:-moz-table-border-nonzero rule above */
table[frame="void"]   { border-style: hidden; }
table[frame="above"]  { border-style: outset hidden hidden hidden; }
table[frame="below"]  { border-style: hidden hidden outset hidden; }
table[frame="lhs"]    { border-style: hidden hidden hidden outset; }
table[frame="rhs"]    { border-style: hidden outset hidden hidden; }
table[frame="hsides"] { border-style: outset hidden; }
table[frame="vsides"] { border-style: hidden outset; }
table[frame="box"],
table[frame="border"] { border-style: outset; }


/* Internal Table Borders */

  /* 'border' cell borders first */

table:-moz-table-border-nonzero > * > tr > td,
table:-moz-table-border-nonzero > * > tr > th,
table:-moz-table-border-nonzero > * > td,
table:-moz-table-border-nonzero > * > th,
table:-moz-table-border-nonzero > td,
table:-moz-table-border-nonzero > th
{
  border-width: thin;
  border-style: inset;
}

/* collapse only if rules are really specified */
table[rules]:not([rules="none"], [rules=""]) {
  border-collapse: collapse;
}

/* only specified rules override 'border' settings
  (increased specificity to achieve this) */
table[rules]:not([rules=""])> tr > td,
table[rules]:not([rules=""])> * > tr > td,
table[rules]:not([rules=""])> tr > th,
table[rules]:not([rules=""])> * > tr > th,
table[rules]:not([rules=""])> td,
table[rules]:not([rules=""])> th
{
  border-width: thin;
  border-style: none;
}


table[rules][rules="none"]  > tr > td,
table[rules][rules="none"] > * > tr > td,
table[rules][rules="none"] > tr > th,
table[rules][rules="none"] > * > tr > th,
table[rules][rules="none"] > td,
table[rules][rules="none"] > th
{
  border-width: thin;
  border-style: none;
}

table[rules][rules="all"] > tr > td,
table[rules][rules="all"] > * > tr > td,
table[rules][rules="all"] > tr > th,
table[rules][rules="all"] > * > tr > th,
table[rules][rules="all"] > td,
table[rules][rules="all"] > th
{
  border-width: thin;
  border-style: solid;
}

table[rules][rules="rows"] > tr,
table[rules][rules="rows"] > * > tr {
  border-block-start-width: thin;
  border-block-end-width: thin;
  border-block-start-style: solid;
  border-block-end-style: solid;
}


table[rules][rules="cols"] > tr > td,
table[rules][rules="cols"] > * > tr > td,
table[rules][rules="cols"] > tr > th,
table[rules][rules="cols"] > * > tr > th {
  border-inline-start-width: thin;
  border-inline-end-width: thin;
  border-inline-start-style: solid;
  border-inline-end-style: solid;
}

table[rules][rules="groups"] > colgroup {
  border-inline-start-width: thin;
  border-inline-end-width: thin;
  border-inline-start-style: solid;
  border-inline-end-style: solid;
}
table[rules][rules="groups"] > tfoot,
table[rules][rules="groups"] > thead,
table[rules][rules="groups"] > tbody {
  border-block-start-width: thin;
  border-block-end-width: thin;
  border-block-start-style: solid;
  border-block-start-style: solid;
}


/* caption inherits from table not table-outer */
caption {
  display: table-caption;
  text-align: center;
}

table[align="center"] > caption {
  margin-inline-start: auto;
  margin-inline-end: auto;
}

table[align="center"] > caption[align="left"]:dir(ltr) {
  margin-inline-end: 0;
}
table[align="center"] > caption[align="left"]:dir(rtl) {
  margin-inline-start: 0;
}

table[align="center"] > caption[align="right"]:dir(ltr) {
  margin-inline-start: 0;
}
table[align="center"] > caption[align="right"]:dir(rtl) {
  margin-inline-end: 0;
}

tr {
  display: table-row;
  vertical-align: inherit;
}

col {
  display: table-column;
}

colgroup {
  display: table-column-group;
}

tbody {
  display: table-row-group;
  vertical-align: middle;
}

thead {
  display: table-header-group;
  vertical-align: middle;
}

tfoot {
  display: table-footer-group;
  vertical-align: middle;
}

/* for XHTML tables without tbody */
table > tr {
  vertical-align: middle;
}

td {
  display: table-cell;
  vertical-align: inherit;
  text-align: unset;
  padding: 1px;
}

th {
  display: table-cell;
  vertical-align: inherit;
  font-weight: bold;
  padding: 1px;
}

tr > form:-moz-is-html, tbody > form:-moz-is-html,
thead > form:-moz-is-html, tfoot > form:-moz-is-html,
table > form:-moz-is-html {
  /* Important: don't show these forms in HTML */
  display: none !important;
}

table[bordercolor] > tbody,
table[bordercolor] > thead,
table[bordercolor] > tfoot,
table[bordercolor] > col,
table[bordercolor] > colgroup,
table[bordercolor] > tr,
table[bordercolor] > * > tr,
table[bordercolor]  > tr > td,
table[bordercolor] > * > tr > td,
table[bordercolor]  > tr > th,
table[bordercolor] > * > tr > th {
  border-color: inherit;
}

/* inlines */

q:before {
  content: open-quote;
}

q:after {
  content: close-quote;
}

b, strong {
  font-weight: bolder;
}

i, cite, em, var, dfn {
  font-style: italic;
}

tt, code, kbd, samp {
  font-family: -moz-fixed;
}

u, ins {
  text-decoration: underline;
}

s, strike, del {
  text-decoration: line-through;
}

big {
  font-size: larger;
}

small {
  font-size: smaller;
}

sub {
  vertical-align: sub;
  font-size: smaller;
}

sup {
  vertical-align: super;
  font-size: smaller;
}

nobr {
  white-space: nowrap;
}

mark {
  background: yellow;
  color: black;
}

/* titles */
abbr[title], acronym[title] {
  text-decoration: dotted underline;
}

/* lists */

ul, menu, dir {
  display: block;
  list-style-type: disc;
  margin-block-start: 1em;
  margin-block-end: 1em;
  padding-inline-start: 40px;
}

@supports -moz-bool-pref("dom.menuitem.enabled") {
  menu[type="context"] {
    display: none !important;
  }
}

ul, ol, menu {
  counter-reset: list-item;
  -moz-list-reversed: false;
}

ol[reversed] {
  -moz-list-reversed: true;
}

ol {
  display: block;
  list-style-type: decimal;
  margin-block-start: 1em;
  margin-block-end: 1em;
  padding-inline-start: 40px;
}

li {
  display: list-item;
  text-align: match-parent;
}

/* nested lists have no top/bottom margins */
:is(ul, ol, dir, menu, dl) ul,
:is(ul, ol, dir, menu, dl) ol,
:is(ul, ol, dir, menu, dl) dir,
:is(ul, ol, dir, menu, dl) menu,
:is(ul, ol, dir, menu, dl) dl {
  margin-block-start: 0;
  margin-block-end: 0;
}

/* 2 deep unordered lists use a circle */
:is(ol, ul, menu, dir) ul,
:is(ol, ul, menu, dir) menu,
:is(ol, ul, menu, dir) dir {
  list-style-type: circle;
}

/* 3 deep (or more) unordered lists use a square */
:is(ol, ul, menu, dir) :is(ol, ul, menu, dir) ul,
:is(ol, ul, menu, dir) :is(ol, ul, menu, dir) menu,
:is(ol, ul, menu, dir) :is(ol, ul, menu, dir) dir {
  list-style-type: square;
}


/* leafs */

/* <hr> noshade and color attributes are handled completely by
 * the nsHTMLHRElement attribute mapping code
 */
hr {
  display: block;
  border: 1px inset;
  margin-block-start: 0.5em;
  margin-block-end: 0.5em;
  margin-inline-start: auto;
  margin-inline-end: auto;
  color: gray;
  -moz-float-edge: margin-box;
  box-sizing: content-box;
}

hr[size="1"] {
  border-style: solid none none none;
}

input:-moz-broken::before,
img:-moz-broken::before {
  content: -moz-alt-content !important;
  unicode-bidi: isolate;
}

object:-moz-broken > *|* {
  /*
    Inherit in the object's alignment so that if we aren't aligned explicitly
    we'll end up in the right place vertically.  See bug 36997.  Note that this
    is not !important because we _might_ be aligned explicitly.
  */
  vertical-align: inherit;
}

img[usemap], object[usemap] {
  color: blue;
}

frameset {
  display: block ! important;
  overflow: clip;
  position: static ! important;
  float: none ! important;
  border: none ! important;
}

link {
  display: none;
}

frame {
  border-radius: 0 ! important;
}

iframe {
  border: 2px inset;
}

noframes {
  display: none;
}

spacer {
  position: static ! important;
  float: none ! important;
}

canvas {
  user-select: none;
}

/* focusable content: anything w/ tabindex >=0 is focusable */
:-moz-focusring {
  /* Don't specify the outline-color, we should always use initial value. */
   outline: 1px dotted;
}

iframe:-moz-focusring,
body:-moz-focusring,
html:-moz-focusring {
  /* These elements historically don't show outlines when focused by default.
   * We could consider changing that if needed. */
  outline-style: none;
}

/* hidden elements */
base, basefont, datalist, head, meta, script, style, title,
noembed, param, template {
   display: none;
}

area {
  /* Don't give it frames other than its imageframe */
  display: none ! important;
}

iframe:fullscreen {
  /* iframes in full-screen mode don't show a border. */
  border: none !important;
  padding: unset !important;
}

/* media elements */
video {
  object-fit: contain;
}

video > img:-moz-native-anonymous {
  /* Video poster images should render with the video element's "object-fit" &
     "object-position" properties */
  object-fit: inherit !important;
  object-position: inherit !important;
}

audio:not([controls]) {
  display: none;
}

audio[controls] {
  /* This ensures that intrinsic sizing can reliably shrinkwrap our
      controls (which are also always horizontal) and produce a
      reasonable intrinsic size from them. */
  writing-mode: horizontal-tb !important;
}

*|*::-moz-html-canvas-content {
  display: block !important;
  /* we want to be an absolute and fixed container */
  transform: translate(0) !important;
}

video > .caption-box {
  width: 100%;
  height: 100%;
  position: relative;
}

/**
 * The pseudo element won't inheirt CSS styles from its direct parent, `::cue`
 * would acutally inherit styles from video because it's video's pseudo element.
 * Therefore, we have to explicitly set some styles which are aleady defined in
 * its parent element in vtt.jsm.
 */
::cue {
  color: rgba(255, 255, 255, 1);
  white-space: pre-line;
  background-color: rgba(0, 0, 0, 0.8);
  font: var(--cue-font-size) sans-serif;
  writing-mode: var(--cue-writing-mode, inherit);
  overflow-wrap: break-word;
  /* TODO : enable unicode-bidi, right now enable it would cause incorrect
            display direction, maybe related with bug 1558431. */
}

/* details & summary */
details > summary:-moz-native-anonymous {
  /* TODO(krosylight): Remove this when fixing bug 1308080 */
  user-select: none;
}

details > summary:is(:first-of-type, :-moz-native-anonymous) {
  display: list-item;
  counter-increment: list-item 0;
  list-style: disclosure-closed inside;
}

details[open] > summary:is(:first-of-type, :-moz-native-anonymous) {
  list-style-type: disclosure-open;
}

details > summary:first-of-type > *|* {
  /* Cancel "list-style-position: inside" inherited from summary. */
  list-style-position: initial;
}

/* <dialog> element styles */

dialog {
  position: absolute;
  inset-inline-start: 0;
  inset-inline-end: 0;
  color: black;
  margin: auto;
  border-width: initial;
  border-style: solid;
  border-color: initial;
  border-image: initial;
  padding: 1em;
  background: white;
  width: -moz-fit-content;
  height: -moz-fit-content;
}

dialog:not([open]) {
  display: none;
}

/* This pseudo-class is used to remove the inertness for
   the topmost modal dialog in top layer. This reverts
   what StyleAdjuster's adjust_for_inert does.
*/
dialog:-moz-topmost-modal-dialog {
  -moz-inert: none;
  -moz-user-focus: initial;
  -moz-user-input: initial;
  -moz-user-modify: initial;
  user-select: text;
  pointer-events: initial;
  cursor: initial;
}

dialog:-moz-modal-dialog {
  -moz-top-layer: top !important;
  position: fixed;
  overflow: auto;
  inset-block-start: 0;
  inset-block-end: 0;
  max-width: calc(100% - 6px - 2em);
  max-height: calc(100% - 6px - 2em);
}

/* https://html.spec.whatwg.org/#flow-content-3 */
dialog::backdrop {
  background: rgba(0, 0, 0, 0.1);
}

marquee {
  inline-size: -moz-available;
  display: inline-block;
  vertical-align: text-bottom;
  text-align: start;
}

marquee:is([direction="up"], [direction="down"]) {
  block-size: 200px;
}

/* Ruby */

ruby {
  display: ruby;
}
rb {
  display: ruby-base;
  white-space: nowrap;
}
rp {
  display: none;
}
rt {
  display: ruby-text;
}
rtc {
  display: ruby-text-container;
}
rtc, rt {
  white-space: nowrap;
  font-size: 50%;
  -moz-min-font-size-ratio: 50%;
  line-height: 1;
%ifndef XP_WIN
  /* The widely-used Windows font Meiryo doesn't work fine with this
   * setting, so disable this on Windows. We should re-enable it once
   * Microsoft fixes this issue. See bug 1164279. */
  font-variant-east-asian: ruby;
%endif
}
rtc, rt {
  text-emphasis: none;
}
rtc:lang(zh), rt:lang(zh) {
  ruby-align: center;
}
rtc:lang(zh-TW), rt:lang(zh-TW) {
  font-size: 30%; /* bopomofo */
  -moz-min-font-size-ratio: 30%;
}
rtc > rt {
  font-size: unset;
}
ruby, rb, rt, rtc {
  unicode-bidi: isolate;
}

/* Shadow DOM v1
 * https://drafts.csswg.org/css-scoping/#slots-in-shadow-tree */
slot {
  display: contents;
}