gecko-dev/layout/mathml/mathml.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 for MathML elements                                          */
/**************************************************************************/

@namespace url(http://www.w3.org/1998/Math/MathML);

/**************************************************************************/
/* <math> - outermost math element                                        */
/* Put Cambria before Cambria Math as Cambria Math has neither bold nor   */
/* italic.                                                                */
/**************************************************************************/

math {
  direction: ltr;
  unicode-bidi: embed;
  display: inline;
  font-size: inherit;
  font-style: normal;
  font-family: MathJax_Main, STIXGeneral, DejaVu Serif, DejaVu Sans, Cambria, Cambria Math, Times, Lucida Sans Unicode, OpenSymbol, Standard Symbols L, serif;
  text-rendering: optimizeLegibility;
  -moz-float-edge: margin-box;
  -moz-math-display: inline;
}
math[mode="display"], math[display="block"] {
  display: block;
  text-align: -moz-center;
  -moz-math-display: block;
}
math[display="inline"] {
  display: inline;
  -moz-math-display: inline;
}
math[displaystyle="false"] {
  -moz-math-display: inline;
}
math[displaystyle="true"] {
  -moz-math-display: block;
}

/**************************************************************************/
/* Token elements                                                         */
/**************************************************************************/

ms {
  display: inline;
}
ms:before, ms:after {
  content: "\0022"
}
ms[lquote]:before {
  content: attr(lquote)
}
ms[rquote]:after {
  content: attr(rquote)
 }

/**************************************************************************/
/* Links                                                                  */
/**************************************************************************/
:-moz-any-link {
  text-decoration: none !important;
}

/**************************************************************************/
/* attributes common to all tags                                          */
/**************************************************************************/

/* These attributes are mapped to style in nsMathMLElement.cpp:

   - background -> background                             (deprecated)
   - color -> color                                       (deprecated)
   - fontfamily -> font-family                            (deprecated)
   - fontsize -> font-size                                (deprecated)
   - fontstyle -> font-style                              (deprecated)
   - fontweight -> font-weight                            (deprecated)
   - mathvariant -> -moz-math-variant
   - scriptsizemultiplier -> -moz-script-size-multiplier
   - scriptminsize -> -moz-script-min-size
   - scriptlevel -> -moz-script-level
   - mathsize -> font-size
   - mathcolor -> color
   - mathbackground -> background

*/


/**************************************************************************/
/* merror                                                                 */
/**************************************************************************/

merror {
  display: block;
  font-family: sans-serif;
  font-weight: bold;
  white-space: pre;
  margin: 1em;
  padding: 1em;
  border-width: thin;
  border-style: inset;
  border-color: red;
  font-size: 14pt;
  background-color: lightyellow;
}

/**************************************************************************/
/* mtable and its related tags                                            */
/**************************************************************************/

mtable {
  display: inline-table;
  border-collapse: separate;
  border-spacing: 0;
  text-indent: 0;
}
mtable[frame="none"] {
  border: none;
}
mtable[frame="solid"] {
  border: solid thin;
}
mtable[frame="dashed"] {
  border: dashed thin;
}

mtr, mlabeledtr {
  display: table-row;
  vertical-align: baseline;
}

mtd {
  display: table-cell;
  vertical-align: inherit;
  text-align: -moz-center;
  white-space: nowrap;
}

/* Don't support m(labeled)tr without mtable, nor mtd without m(labeled)tr */
:not(mtable) > mtr,
:not(mtable) > mlabeledtr,
:not(mtr):not(mlabeledtr) > mtd {
  display: none !important;
}

/* Hide the label because mlabeledtr is not supported yet (bug 356870). This
   rule can be overriden by users. */
mlabeledtr > mtd:first-child {
    display: none;
}

/**********************************************************************/
/* rules to achieve the default spacing between cells. The back-end code
   will set the internal attributes depending on the cell's position.
   These rules are hard-coded, the comments indicate what would be
   desirable if the style data could be changed on the fly to pick
   the values that users may set with the attributes of <mtable> */
mtd {
  padding-right: 0.4em;  /* half of columnspacing[colindex] */
  padding-left: 0.4em;   /* half of columnspacing[colindex-1] */
  padding-bottom: 0.5ex; /* half of rowspacing[rowindex] */
  padding-top: 0.5ex;    /* half of rowspacing[rowindex-1] */
}
/* turn off the spacing at the periphery of boundary cells */
mtr:first-child > mtd {
  padding-top: 0ex;
}
mtr:last-child > mtd {
  padding-bottom: 0ex;
}
mtd:first-child {
  padding-left: 0em;
}
mtd:last-child {
  padding-right: 0em;
}
/* re-instate the spacing if the table has a surrounding frame */
mtable[frame="solid"] > mtr:first-child > mtd,
mtable[frame="dashed"] > mtr:first-child > mtd {
  padding-top: 0.5ex; /* framespacing.top */
}
mtable[frame="solid"] > mtr:last-child > mtd,
mtable[frame="dashed"] > mtr:last-child > mtd {
  padding-bottom: 0.5ex; /* framespacing.bottom */
}
mtable[frame="solid"] > mtr > mtd:first-child,
mtable[frame="dashed"] > mtr > mtd:first-child {
  padding-left: 0.4em; /* framespacing.left */
}
mtable[frame="solid"] > mtr > mtd:last-child,
mtable[frame="dashed"] > mtr > mtd:last-child {
  padding-right: 0.4em; /* framespacing.right */
}

/**************************************************************************/
/* Style used for stretchy symbols *must* be normal to avoid misaligments */
/* By leaving the font-family empty, the MathML engine will use the value
   provided by the mathfont-family property in the mathfont.properties file
   or the value of the user's pref("font.mathfont-family", "...").

   Authors can make elements on a document to be stretched with different
   fonts, e.g.,

   To request the use of STIX fonts, you can add a <style>...</style> with:
   <mo myfonts="stix">...</mo> with the associated CSS declaration
   mo[myfonts="stix"]::-moz-math-stretchy {
     font-family: STIXNonUnicode, STIXSizeOneSym, STIXSize1, STIXGeneral;
   }

   To request the use of Asana fonts, you can add a <style>...</style> with:
   <mo myfonts="asana">...</mo> with the associated CSS declaration
   mo[myfonts="asana"]::-moz-math-stretchy {
     font-family: Asana Math;
   }

   Of course, if you just want all of the stretchy characters in your
   document to be stretched with your preferred list, you can just do:
   ::-moz-math-stretchy {
     font-family: [your-particular-list]
   }

   Note that like other fonts in the document, users can override this by
   clicking the pref to override document fonts.
/**************************************************************************/

::-moz-math-stretchy {
  font-style: normal;
  font-family: serif; /* an empty family is ignored as an error and behaves like inherit */
/*  background-color: #3C6; */
}
/* Don't actually style -moz-math-anonymous by default */
/*
::-moz-math-anonymous {
}
*/

/**********************************************************************/
/* This is used when wrapping non-MathML inline elements inside math. */
*|*::-moz-mathml-anonymous-block {
  display: inline-block !important;
  position: static !important;
  text-indent: 0;
}

/**************************************************************************/
/* Controlling Displaystyle and Scriptlevel                               */
/**************************************************************************/

/*
  http://www.w3.org/Math/draft-spec/chapter3.html#presm.scriptlevel

  The determination of -moz-math-display for <math> involves the displaystyle
  and display attributes. See the <math> section above.
*/

/*
  Map mstyle@displaystyle to -moz-math-display.
*/
mstyle[displaystyle="false"] {
  -moz-math-display: inline;
}
mstyle[displaystyle="true"] {
  -moz-math-display: block;
}

/*  munder, mover and munderover change the scriptlevels of their children
   using -moz-math-increment-script-level because regular CSS rules are
   insufficient to control when the scriptlevel should be incremented. All other
   cases can be described using regular CSS, so we do it this way because it's
   more efficient and less code. */
:-moz-math-increment-script-level { -moz-script-level: +1; }

/*
   The mfrac element sets displaystyle to "false", or if it was already false
   increments scriptlevel by 1, within numerator and denominator.
*/   
mfrac > * {
    -moz-script-level: auto;
    -moz-math-display: inline;
}

/*
   The mroot element increments scriptlevel by 2, and sets displaystyle to
   "false", within index, but leaves both attributes unchanged within base.
   The msqrt element leaves both attributes unchanged within its argument.
*/
mroot > :not(:first-child) {
    -moz-script-level: +2;
    -moz-math-display: inline;
}

/*
   The msub element [...] increments scriptlevel by 1, and sets displaystyle to
   "false", within subscript, but leaves both attributes unchanged within base.

   The msup element [...] increments scriptlevel by 1, and sets displaystyle to
   "false", within superscript, but leaves both attributes unchanged within
   base.

   The msubsup element [...] increments scriptlevel by 1, and sets displaystyle
   to "false", within subscript and superscript, but leaves both attributes
   unchanged within base.

   The mmultiscripts element increments scriptlevel by 1, and sets displaystyle
   to "false", within each of its arguments except base, but leaves both
   attributes unchanged within base.
 */
msub > :not(:first-child),
msup > :not(:first-child),
msubsup > :not(:first-child),
mmultiscripts > :not(:first-child) {
    -moz-script-level: +1;
    -moz-math-display: inline;
}

/*
   The munder element [...] always sets displaystyle to "false" within the
   underscript, but increments scriptlevel by 1 only when accentunder is
   "false". Within base, it always leaves both attributes unchanged.

   The mover element [...] always sets displaystyle to "false" within
   overscript, but increments scriptlevel by 1 only when accent is "false".
   Within base, it always leaves both attributes unchanged.

   The munderover [..] always sets displaystyle to "false" within underscript
   and overscript, but increments scriptlevel by 1 only when accentunder or
   accent, respectively, are "false". Within base, it always leaves both
   attributes unchanged.
*/
munder > :not(:first-child),
mover > :not(:first-child),
munderover > :not(:first-child) {
    -moz-math-display: inline;
}

/*
   The displaystyle attribute is allowed on the mtable element to set the
   inherited value of the attribute. If the attribute is not present, the
   mtable element sets displaystyle to "false" within the table elements.
*/
mtable { -moz-math-display: inline; }
mtable[displaystyle="true"] { -moz-math-display: block; }

/*
   The mscarries element sets displaystyle to "false", and increments
   scriptlevel by 1, so the children are typically displayed in a smaller font.
   XXXfredw: This element is not implemented yet. See bug 534967.
mscarries {
  -moz-script-level: +1;
  -moz-math-display: inline;
}
*/