@namespace "http://www.w3.org/1998/Math/MathML";
:any-link {
color: -webkit-link;
cursor: auto;
}
:any-link:active {
color: -webkit-activelink;
}
:focus {
outline: auto 5px -webkit-focus-ring-color
}
math {
display: inline;
/*
We use the exact bounding boxes of glyphs to avoid excessive gaps in mathematical formulas.
FIXME: Should we replace this with a more general handling of ink/logical ascent/descent?
See http://webkit.org/b/130326, http://webkit.org/b/156841 and
http://www.mathml-association.org/MathMLinHTML5/S3.html#SS1.SSS1
*/
-webkit-line-box-contain: glyphs replaced;
/*
Inheriting the following properties can cause excessive spacing of mathematical formulas so we
just reset them to their default values.
*/
text-indent: 0;
line-height: normal;
word-spacing: normal;
letter-spacing: normal;
/*
In some countries and languages, text is written from right-to-left while mathematical formulas
are written from left-to-write. Hence it is wrong to inherit the direction and we reset that
property to left-to-write. Per the MathML specification, authors should explicitly use the "dir"
attribute on the <math> element if they want to force the overall direction of the mathematical
formulas.
*/
direction: ltr;
/*
Mathematical formula inside an italic paragraph should not inherit the font-style as this gives
poor rendering and is confusing with the mathvariant italic.
*/
font-style: normal;
/* Fonts with appropriate Unicode coverage and OpenType features are required for good math
rendering. These requirements as well as the up-to-date list of known math fonts to fulfill
these requirements are listed on http://trac.webkit.org/wiki/MathML/Fonts.
Inheriting the font-family is likely to make MathML use text fonts that are not designed for
math layout and thus would cause very poor mathematical rendering. Consequently, the default
font-family on the <math> tag is set to a list of recommended math fonts.
For best rendering, authors and readers are encouraged to use text and math fonts with consistent
style (appearance, size...), see http://trac.webkit.org/wiki/MathML/Fonts#CustomizingMathFont
FIXME: Should we make math font properties configurable (http://webkit.org/b/156843)?
*/
font-family:
/*
This font has Computer Modern style and is provided with most TeX & Linux distributions.
We put it as the default because its style is familiar to TeX, Wikipedia and math people.
*/
"Latin Modern Math",
/*
The following fonts have Times style and are provided with most TeX & Linux distributions.
We put XITS & STIX as a second option because they have very good unicode coverage.
STIX Two is a complete redesign of STIX that fixes serious bugs in version one so we put it in first position.
XITS is a fork of STIX with bug fixes and more Arabic/RTL features so we put it in second position.
*/
"STIX Two Math",
"XITS Math",
"STIX Math",
"Libertinus Math",
"TeX Gyre Termes Math",
/*
These fonts respectively have style compatible with Bookman Old and Century Schoolbook.
They are provided with most TeX & Linux distributions.
*/
"TeX Gyre Bonum Math",
"TeX Gyre Schola",
/*
DejaVu is pre-installed on many Linux distributions and is included in LibreOffice.
*/
"DejaVu Math TeX Gyre",
/*
The following fonts have Palatino style and are provided with most TeX & Linux distributions.
Asana Math has some rendering issues (e.g. missing italic correction) so we put it after.
*/
"TeX Gyre Pagella Math",
"Asana Math",
/*
The following fonts are proprietary and have not much been tested so we put them at the end.
Cambria Math it is pre-installed on Windows 7 and higher.
*/
"Cambria Math",
"Lucida Bright Math",
"Minion Math",
/*
The following fonts do not satisfy the requirements for good mathematical rendering.
These are pre-installed on Mac and iOS so we list them to provide minimal unicode-based
mathematical rendering. For more explanation of fallback mechanisms and missing features see
http://trac.webkit.org/wiki/MathML/Fonts#ObsoleteFontsandFallbackMechanisms.
STIX fonts have best unicode coverage so we put them first. */
STIXGeneral,
STIXSizeOneSym,
Symbol,
"Times New Roman",
/* Mathematical fonts generally use "serif" style. Hence we append the generic "serif" family
as a fallback in order to increase our chance to find a mathematical font. */
serif;
/* FIXME: Should we reset more CSS properties (http://webkit.org/b/156839)? */
}
math[display="block"] {
display: block;
page-break-inside: avoid;
}
ms, mspace, mtext, mi, mn, mo, mrow, mfenced, mfrac, msub, msup, msubsup, mmultiscripts, mprescripts, none, munder, mover, munderover, msqrt, mroot, merror, mphantom, mstyle, menclose, semantics, mpadded, maction {
display: block;
}
ms, mtext, mi, mn, mo, annotation, mtd {
white-space: nowrap !important;
}
msub > * + *, msup > * + *, msubsup > * + *, mmultiscripts > * + *, munder > * + *, mover > * + *, munderover > * + * {
font-size: 0.75em; /* FIXME: MathML standard is 0.71em */
}
mroot > *:last-child {
font-size: 0.5625em; /* This 0.75^2 since the scriptlevel is incremented by 2 in the index. */
}
mi {
-webkit-padding-end: 0.1em;
}
msub > mi:first-child, msubsup > mi:first-child {
-webkit-padding-end: 0;
}
msubsup > mi:first-child + * + * {
-webkit-margin-start: 0.14em; /* This is larger than 0.1em because the child's font-size is smaller than the <msubsup>'s. */
}
math[mathsize="small"], mstyle[mathsize="small"], mo[mathsize="small"], mn[mathsize="small"], mi[mathsize="small"], mtext[mathsize="small"], mspace[mathsize="small"], ms[mathsize="small"] {
font-size: 0.75em;
}
math[mathsize="normal"], mstyle[mathsize="normal"], mo[mathsize="normal"], mn[mathsize="normal"], mi[mathsize="normal"], mtext[mathsize="normal"], mspace[mathsize="normal"], ms[mathsize="normal"] {
font-size: 1em;
}
math[mathsize="big"], mstyle[mathsize="big"], mo[mathsize="big"], mn[mathsize="big"], mi[mathsize="big"], mtext[mathsize="big"], mspace[mathsize="big"], ms[mathsize="big"] {
font-size: 1.5em;
}
mphantom {
visibility: hidden;
}
/* This is a special style for erroneous markup. */
merror {
outline: solid thin red;
font-weight: bold;
font-family: sans-serif;
background-color: lightYellow;
}
mtable {
display: inline-table;
text-align: center;
}
mtr {
display: table-row;
}
mtd {
display: table-cell;
padding: 0.5ex;
}
/* Use inline-block for children so that the text-align property is taken into account */
mtd > * {
display: inline-block;
}
mtable[columnalign="left"], mtr[columnalign="left"], mtd[columnalign="left"] {
text-align: left;
}
mtable[columnalign="right"], mtr[columnalign="right"], mtd[columnalign="right"] {
text-align: right;
}
mtable[rowalign="top"] mtd, mtable mtr[rowalign="top"] mtd, mtable mtr mtd[rowalign="top"] {
vertical-align: top;
}
mtable[rowalign="bottom"] mtd, mtable mtr[rowalign="bottom"] mtd, mtable mtr mtd[rowalign="bottom"] {
vertical-align: bottom;
}
mtable[rowalign="center"] mtd, mtable mtr[rowalign="center"] mtd, mtable mtr mtd[rowalign="center"] {
vertical-align: middle;
}
mtable[frame="solid"] {
border: solid thin;
}
mtable[frame="dashed"] {
border: dashed thin;
}
mtable[rowlines="solid"], mtable[rowlines="dashed"], mtable[columnlines="solid"], mtable[columnlines="dashed"] {
border-collapse: collapse;
}
mtable[rowlines="solid"] > mtr + mtr {
border-top: solid thin;
}
mtable[rowlines="dashed"] > mtr + mtr {
border-top: dashed thin;
}
mtable[columnlines="solid"] > mtr > mtd + mtd {
border-left: solid thin;
}
mtable[columnlines="dashed"] > mtr > mtd + mtd {
border-left: dashed thin;
}