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‎css2/changes.html‎

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‎css2/changes.src‎

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN">
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<html lang="en">
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<!-- $Id: changes.src,v 2.117 2010-05-19 15:10:02 bbos Exp $ -->
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<!-- $Id: changes.src,v 2.118 2010-08-04 16:03:37 bbos Exp $ -->
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<HEAD>
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<TITLE>Changes</TITLE>
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</HEAD>
@@ -4203,11 +4203,27 @@ list of existing vendor prefixes.
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href="/TR/2009/CR-CSS2-20090908/syndata.html#declaration">
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Section&nbsp;4.1.8 Declarations and properties</a></h3>
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<p><span class=date>[2010-05-12]</span> Remove ~2.1~ from
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<p><span class=date>[2010-05-12]</span> Remove &ldquo;2.1&rdquo; from
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<blockquote><p>Every CSS <del>2.1</del> property has its own syntactic
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and semantic restrictions</blockquote>
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4211+
<!--========================== issue 71b ==========================-->
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<h3 id="t.4.2"><a
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href="/TR/2009/CR-CSS2-20090908/syndata.html#parsing-errors">
4215+
Section&nbsp;4.2 Rules for handling parsing errors</a></h3>
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<p><span class=date>[2010-07-07]</span> Clarify that the fifth bullet
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only applies to at-rules. (At-keywords in other constructs are already
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handled in the preceding bullets.)
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<blockquote>
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<ul><li><strong><del>Invalid at-keywords</del> <ins>At-rules with
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unknown at-keywords</ins>.</strong> User agents must ignore&hellip;
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</ul>
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</blockquote>
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42114227
<!--========================== issue 141 ==========================-->
42124228

42134229
<h3 id="t.4.3.2"><a
@@ -4252,7 +4268,7 @@ within a URI value. Therefore comments are not allowed within a URI
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value.</ins>
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</blockquote>
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4255-
<!--========================== issue 115 ===========================-->
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<!--========================== issue 115b ==========================-->
42564272

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<h3 id="t.8.3.1"><a
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href="/TR/2009/CR-CSS2-20090908/box.html#collapsing-margins">
@@ -4353,7 +4369,53 @@ definition is recursive.)</ins>
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':first-line' pseudo-element.</ins>
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</blockquote>
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<!--========================== issue 115 ===========================-->
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<!--========================== issue 107 ===========================-->
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<h3 id="t.9.3.2"><a
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href="/TR/2009/CR-CSS2-20090908/visuren.html#position-props">
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Section&nbsp;9.3.2 Box offsets: 'top', 'right', 'bottom', 'left'</a></h3>
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<p><span class=date>[2010-07-19]</span> If 'top', 'right', 'bottom' or
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'left' is specified as 'auto', the <em>used</em> value rather than the
4380+
<em>computed</em> value is set to the negative of the opposite
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side. For all four, change:
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<blockquote>
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<table><tr><td><em>Computed value:</em><td><del>for
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'position:relative', see section Relative Positioning.</del> For
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'position:static', 'auto'. Otherwise: if specified as a length, the
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corresponding absolute length; if specified as a percentage, the
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specified value; otherwise, 'auto'.</table>
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</blockquote>
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<p>And in section&nbsp;9.4.3:
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<blockquote>
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<p>[&hellip;] Since boxes are not split or stretched as a result of
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'left' or 'right', the <del>computed</del> <ins>used</ins> values are
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always: left = -right.
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<p>If both 'left' and 'right' are 'auto' (their initial values), the
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<del>computed</del> <ins>used</ins> values are '0' (i.e., the boxes
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stay in their original position).
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<p>If 'left' is 'auto', its <del>computed</del> <ins>used</ins> value
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is minus the value of 'right' (i.e., the boxes move to the left by the
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value of 'right').
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<p>If 'right' is specified as 'auto', its <del>computed</del>
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<ins>used</ins> value is minus the value of 'left'.
4408+
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<p>[&hellip;] Since boxes are not split or stretched as a result of
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'top' or 'bottom', the <del>computed</del> <ins>used</ins> values are
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always: top = -bottom. If both are 'auto', their <del>computed</del>
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<ins>used</ins> values are both '0'. If one of them is 'auto', it
4413+
becomes the negative of the other. If neither is 'auto', 'bottom' is
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ignored (i.e., the <del>computed</del> <ins>used</ins> value of
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'bottom' will be minus the value of 'top').
4416+
</blockquote>
4417+
4418+
<!--========================== issue 115a ==========================-->
43574419

43584420
<h3 id="t.9.5.2"><a
43594421
href="/TR/2009/CR-CSS2-20090908/visuren.html#flow-control">
@@ -4375,6 +4437,18 @@ media are positioned relative to the page box (and thus repeat on
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every page, just like 'fixed' elements). The position of fixed
43764438
backgrounds in paged media was previously undefined.
43774439

4440+
<!--========================== issue 60a ==========================-->
4441+
4442+
<h3 id="t.9.9.1"><a
4443+
href="/TR/2009/CR-CSS2-20090908/visuren.html#z-index">
4444+
Section&nbsp;9.9.1 Specifying the stack level: the 'z-index'
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property</a></h3>
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<p><span class=date>[2010-07-07]</span> Some ambiguities in the
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description of stacking contexts are fixed and the description is
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clearly marked as non-normative. (Appendix&nbsp;E holds the normative
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description.)
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43784452
<!--========================== issue 163 ==========================-->
43794453

43804454
<h3 id="t.10.2"><a
@@ -4404,6 +4478,130 @@ doesn't depend on whether the property applies or not:
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does not apply</del>
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</blockquote>
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<!--========================== issue 117 ==========================-->
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<h3 id="t.10.8"><a
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href="/TR/2009/CR-CSS2-20090908/visudet.html#line-height">Section&nbsp;10.8
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Line height calculations: the 'line-height' and 'vertical-align'
4486+
properties</a></h3>
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<p><span class=date>[2010-06-02]</span> Clarifications to the
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calculation of the line boxes and the minimum line height
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("strut"). Item 2 in the bulleted list is expanded and items 3 and 4
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are merged, as follows:
4492+
4493+
<blockquote>
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<ol>
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<li>The height of each inline box in the line box is calculated (see
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"Calculating heights and margins" and the 'line-height' property).
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<li>The inline boxes are aligned vertically according to their
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'vertical-align' property. <ins>In case they are aligned 'top' or
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'bottom', they must be aligned so as to minimize the line box
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height. If such boxes are tall enough, there are multiple solutions
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and CSS&nbsp;2.1 does not define the position of the line box's
4503+
baseline (i.e., the position of the strut, see below).</ins>
4504+
4505+
<li>The line box height is the distance between the uppermost box
4506+
top and the lowermost box bottom. <ins>(This includes the strut, as
4507+
explained under 'line-height' below.)</ins>
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4509+
<li><del>If the resulting height is smaller than the minimal height
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of line boxes for this block, as specified by the 'line-height'
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property, the height is increased to be that minimal height.</del>
4512+
</ol>
4513+
</blockquote>
4514+
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<p>Furthermore, in 10.8.1, after the definition of
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&ldquo;strut,&rdquo; clarify that the font determines the initial
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baseline:
4518+
4519+
<blockquote>
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<p><ins>The height and depth of the font above and below the baseline
4521+
are assumed to be metrics that are contained in the font. (For more
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details, see CSS level&nbsp;3.)</ins>
4523+
</blockquote>
4524+
4525+
<!--========================== issue 119 ==========================-->
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<h3 id="t.10.8.1"><a
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href="/TR/2009/CR-CSS2-20090908/visudet.html#leading">Section&nbsp;10.8.1
4529+
Leading and half-leading</a></h3>
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<p><span class=date>[2010-07-19]</span> Clarify text:
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4533+
<blockquote>
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<p>On a block-level, table-cell, table-caption or inline-block element
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whose content is composed of inline-level elements, 'line-height'
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specifies the minimal height of line boxes within the element. The
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minimum height consists of a minimum height above the
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<del>block's</del> baseline and a minimum depth below it, exactly as
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if each line box starts with a zero-width inline box with the
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<del>block's</del> <ins>element's</ins> font and line height
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properties. <del>(what TEX calls a "strut").</del> <ins>We call that
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imaginary box a "strut." (The name is inspired by TeX.).</ins>
4543+
</blockquote>
4544+
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<!--========================== issue 86 ===========================-->
4546+
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<h3 id="t.12.5.1"><a
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href="/TR/2009/CR-CSS2-20090908/generate.html#list-style">
4549+
Section&nbsp;12.5.1 Lists: the 'list-style-type', 'list-style-image',
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'list-style-position', and 'list-style' properties</a></h3>
4551+
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<p><span class=date>[2010-07-14]</span> Because of persistent
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incompatibilites between implementations, the constraints on the
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position of 'outside' markers are relaxed for some values of
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'text-align' and in the presence of floats. This will be fixed in a
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future specification.
4557+
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<!--========================== issue 71a ==========================-->
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<h3 id="t.13.2"><a
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href="/TR/2009/CR-CSS2-20090908/page.html#page-box"> Section&nbsp;13.2
4562+
Page boxes: the @page rule</a></h3>
4563+
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<p><span class=date>[2010-07-07]</span> The @page rule can contain not
4565+
just declarations but also other @-rules. (There aren't any such
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nested @-rules defined in level&nbsp;2, but there are in
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level&nbsp;3.)
4568+
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<blockquote>
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<p>An @page rule consists of the keyword "@page", followed by an
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optional page selector, followed by a block <del>of declarations</del>
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<ins>containing declarations and at-rules</ins>.
4573+
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<p><ins>Note: CSS level&nbsp;2 has no at-rules that may appear inside
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@page, but such at-rules are expected to be defined in
4576+
level&nbsp;3.</ins>
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</blockquote>
4578+
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<p>And add just above section&nbsp;13.2.1:
4580+
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<blockquote>
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<p><ins>The rules for handling malformed declarations, malformed
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statements, and invalid at-rules inside @page are as defined in
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section&nbsp;4.2, with the following addition: when the UA expects the
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start of a declaration or at-rule (i.e., an IDENT token or an
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ATKEYWORD token) but finds an unexpected token instead, that token is
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considered to be the first token of a malformed declaration. I.e., the
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rule for malformed declarations, rather than malformed statements is
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used to determine which tokens to ignore in that case.</ins>
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</blockquote>
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<!--========================== issue 114 ==========================-->
4593+
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<h3 id="t.15.3"><a
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href="/TR/2009/CR-CSS2-20090908/fonts.html#font-family-prop">
4596+
Section&nbsp;15.3 Font family: the 'font-family' property</a></h3>
4597+
4598+
<p><span class=date>[2010-07-19]</span> The specification was
4599+
ambiguous as to whether parentheses, brackets and braces in font names
4600+
must <em>always</em> be escaped, or only when needed to conform to the
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syntax for declarations. Because of that, and because of the many bugs
4602+
in implementations, <em>all</em> font names must now either be quoted,
4603+
or be escaped so as to consist of only identifiers.
4604+
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<!--========================== issue 111 ==========================-->
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44094607
<h3 id="t.15.6"><a
@@ -4414,6 +4612,33 @@ Section&nbsp;15.6 Font boldness: the 'font-weight' property</a></h3>
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'bolder' and 'lighter' no longer depends on both the inherited weight
44154613
and the actually used font, but only on the inherited weight.
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4615+
<!--========================== issue 53 ===========================-->
4616+
4617+
<h3 id="t.16.2"><a
4618+
href="/TR/2009/CR-CSS2-20090908/text.html#alignment-prop">
4619+
Section&nbsp;16.2 Alignment: the 'text-align' property</a></h3>
4620+
4621+
<p><span class=date>[2010-07-19]</span> The value 'pre-line' of
4622+
'white-space' does <em>not</em> inhibit justification. (Only lines
4623+
that end with an explicit newline aren't justified, as is the case for
4624+
any value of 'white-space'.) But, 'pre-wrap' <em>does</em> inhibit
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justification. Replace
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4627+
<blockquote>
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<p><del>If the computed value of text-align is 'justify' while the
4629+
computed value of white-space is 'pre' or 'pre-line', the actual value
4630+
of text-align is set to the initial value.</del>
4631+
</blockquote>
4632+
4633+
<p>with
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4635+
<blockquote>
4636+
<p><ins>If an element has a computed value for 'white-space' of 'pre'
4637+
or 'pre-wrap', then neither the glyphs of that element's text content
4638+
nor its white space may be altered for the purpose of
4639+
justification.</ins>
4640+
</blockquote>
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44174642
<!--========================== issue 84 ===========================-->
44184643

44194644
<h3 id="t.16.4"><a
@@ -4435,6 +4660,22 @@ fixed-width spaces (such as U+3000 and U+2000 through U+200A) are not
44354660
affected.</ins>
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</blockquote>
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<!--========================== issue 182 ==========================-->
4664+
4665+
<h3 id="t.17.2"><a
4666+
href="/TR/2009/CR-CSS2-20090908/tables.html#table-display">
4667+
Section&nbsp;17.2 The CSS table model</a></h3>
4668+
4669+
<p><span class=date>[2010-08-04]</span> Clarify that the term
4670+
&ldquo;row group&rdquo; includes header groups and footer groups as
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well:
4672+
4673+
<blockquote>
4674+
<p>Thus, the table model consists of tables, captions, rows, row
4675+
groups <ins>(including header groups and footer groups)</ins>,
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columns, column groups, and cells.
4677+
</blockquote>
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44384679
<!--========================== issue 127 ==========================-->
44394680

44404681
<h3 id="t.17.4"><a
@@ -4447,7 +4688,49 @@ describes the image as it was in the previous version. Change:
44474688
<blockquote>
44484689
<p>Diagram of a table with a caption above it<del>; the top margin of
44494690
the caption is collapsed with the top margin of the table</del>.
4450-
</blockquote
4691+
</blockquote>
4692+
4693+
<!--========================== issue 26 ===========================-->
4694+
4695+
<h3 id="t.17.5.3"><a
4696+
href="/TR/2009/CR-CSS2-20090908/tables.html#height-layout">
4697+
Section&nbsp;17.5.3 Table height algorithms</a></h3>
4698+
4699+
<p><span class=date>[2010-07-15]</span> Clarify that the height of a
4700+
table row can be influenced by 'vertical-align' and 'height', but the
4701+
content box of the table cell is not affected.
4702+
4703+
<blockquote>
4704+
<p>[&hellip;] it is the maximum of the row's specified 'height',
4705+
<ins>the specified 'height' of each cell in the row,</ins> and the
4706+
minimum height (MIN) required by the cells
4707+
</blockquote>
4708+
4709+
<p>and
4710+
4711+
<blockquote>
4712+
<p>In CSS 2.1, the height of a cell box is the <del>maximum of the
4713+
table cell's 'height' property and the minimum height required by the
4714+
content (MIN).</del> <ins>minimum height required by the content. The
4715+
table cell's 'height' property can influence the height of the row,
4716+
but it does not increase the height of the cell box.</ins> <del>A
4717+
value of 'auto' for 'height' implies that the value MIN will be used
4718+
for layout.</del>
4719+
</blockquote>
4720+
4721+
<!--========================== issue 60b ==========================-->
4722+
4723+
<h3 id="t.E.2"><a
4724+
href="/TR/2009/CR-CSS2-20090908/zindex.html#painting-order">
4725+
Section&nbsp;E.2 Painting order</a></h3>
4726+
4727+
<p><span class=date>[2010-07-07]</span> Clarification:
4728+
4729+
<blockquote>
4730+
<p>The <del>stacking order for</del> <ins>painting order for the
4731+
descendants of</ins> an element generating a stacking context (see the
4732+
'z-index' property) is: [&hellip;]
4733+
</blockquote>
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<!--===============================================================-->
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