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[css2] Issues 153, 181, 204, 205, 213, 215, 218, 220, 221, 228.
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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 2.134 2011-03-04 01:17:51 bbos Exp $ -->
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<!-- $Id: changes.src,v 2.135 2011-03-04 17:01:41 bbos Exp $ -->
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<HEAD>
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<TITLE>Changes</TITLE>
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</HEAD>
@@ -6526,10 +6526,10 @@ Calculating widths and margins</a></h3>
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value, still to be compared to 'min-width' and 'max-width'
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<blockquote>
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<p><p class=note><em><strong>Note.</strong> The used value of 'width'
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calculated below is a tentative value, and may have to be calculated
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multiple times, depending on 'min-width' and 'max-width', see the
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section Minimum and maximum widths below.</em>
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<p><p class=note><ins><em><strong>Note.</strong> The used value of
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'width' calculated below is a tentative value, and may have to be
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calculated multiple times, depending on 'min-width' and 'max-width',
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see the section Minimum and maximum widths below.</em></ins>
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</blockquote>
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<p>A similar note is added to section&nbsp;10.6 about calculating
@@ -6563,7 +6563,177 @@ Inline formatting contexts</a></h3>
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<p>The words "line feed" were a typing error. The intended words are
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"forced line break."
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<!-- To do: 218, 215, 213, 210, 204, 181, 159, 153 -->
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<!--========================== issue 218 ==========================-->
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<h3 id=u.10.3.2><a
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href="/TR/2010/WD-CSS2-20101207/visudet.html#inline-replaced-width">10.3.2
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Inline, replaced elements</a></h3>
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<p>No image formats were found that allow an intrinsic size to be
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expressed as a percentage. The relevant definitions are removed:
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<blockquote>
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<p><del>Percentage intrinsic widths are first evaluated with respect
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to the containing block's width, if that width does not itself depend
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on the replaced element's width. If it does, then the resulting layout
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is undefined in CSS 2.1.</del>
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</blockquote>
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<p>Similarly in <a
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href="/TR/2010/WD-CSS2-20101207/visudet.html#inline-replaced-height">10.6.2</a>:
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<blockquote>
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<p><del>Percentage intrinsic heights are evaluated with respect to the
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containing block's height, if that height is specified explicitly, or
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if the replaced element is absolutely positioned. If neither of these
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conditions is met, then percentage values on such replaced elements
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cannot be resolved and such elements are assumed to have no intrinsic
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height.</del>
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</blockquote>
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<p>And in <a
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href="/TR/2010/WD-CSS2-20101207/generate.html#list-style">12.5.1</a>:
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<blockquote>
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<p><del>2. If the image's intrinsic width or height is given as a
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percentage, then that percentage is resolved against 1em.</del>
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</blockquote>
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<!--========================== issue 215 ==========================-->
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<h3 id=u.10.1><a
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href="/TR/2010/WD-CSS2-20101207/visudet.html#containing-block-details">10.1
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Definition of "containing block"</a></h3>
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<p>In CSS&nbsp;2.1, it is undefined what the containing block of an
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absolutely positioned element is, if its nearest positioned ancestor
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is inline and split over multiple lines:
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<blockquote>
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4. If the element has 'position: absolute', the containing block is
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<del>established by</del> <ins>the padding edge of</ins> the nearest
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ancestor with a 'position' of 'absolute', 'relative' or 'fixed'<del>,
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in the following way:</del><ins>.</ins>
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<ol>
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<li><del>In the case that the ancestor is an inline box, the
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containing block depends on the 'direction' property of the
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ancestor:</del>
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<ol>
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<li><del>If the 'direction' is 'ltr', the top and left of the
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containing block are the top and left padding edges of the first
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box generated by the ancestor, and the bottom and right are the
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bottom and right padding edges of the last box of the
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ancestor.</del>
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<li><del>If the 'direction' is 'rtl', the top and right are the
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top and right padding edges of the first box generated by the
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ancestor, and the bottom and left are the bottom and left padding
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edges of the last box of the ancestor.</del>
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</ol>
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<p><del>Note: This may cause the containing block's width to be
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negative.</del>
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<li><del>Otherwise, the containing block is formed by the padding edge of
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the ancestor.</del>
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</ol>
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<p>If there is no such ancestor, the containing block is the initial
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containing block. <ins>In CSS&nbsp;2.1, if that nearest ancestor is
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an inline-level element that splits across multiple lines, the
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containing block is undefined.</ins>
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</blockquote>
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<!--========================== issue 213 ==========================-->
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<h3 id=u.13.2.2><a
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href="/TR/2010/WD-CSS2-20101207/page.html#page-selectors">13.2.2 Page
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selectors: selecting left, right, and first pages</a></h3>
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<p>CSS&nbsp;2.1 does not define if ':first' applies to the first page or
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the first non-blank page:
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<blockquote>
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<p><ins>If a forced break occurs before the first generated box, it is
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undefined in CSS&nbsp;2.1 whether ':first' applies to the blank page
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before the break or to the page after it.</ins>
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</blockquote>
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<!--========================== issue 204 ==========================-->
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<h3 id=u.8.3.1><a
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href="/TR/2010/WD-CSS2-20101207/box.html#collapsing-margins">8.3.1
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Collapsing margins</a></h3>
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<p>Added a note with a link to 9.4.2, which defines types of line boxes
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that exist but do not interfere with collapsing margins.
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<blockquote>
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<ul>
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<li>no line boxes, no clearance, no padding and no border separate
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them <ins><span class="note">(Note that <a
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href="visuren.html#phantom-line-box">certain zero-height line
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boxes</a> (see <a href="visuren.html#inline-formatting">9.4.2</a>) are
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ignored for this purpose.)</span></ins>
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</blockquote>
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<!--========================== issue 181 ==========================-->
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<h3 id=u.10.8><a
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href="/TR/2010/WD-CSS2-20101207/visudet.html#line-height">10.8 Line
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height calculations: the 'line-height' and 'vertical-align'
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properties</a></h3>
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<p>The definition of which height is used for the different kinds of
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inline-level boxes is made explicit, rather than linked:
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<blockquote>
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<ol>
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<li>The height of each inline-level box in the line box is calculated.
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<ins>For replaced elements, inline-block elements, and inline-table
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elements, this is the height of their margin box; for inline boxes,
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this is their 'line-height'.</ins>
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(See <a href="visudet.html#Computing_heights_and_margins">"Calculating
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heights and margins"</a> and the
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<del>'line-height' property</del>
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<ins><a href="visudet.html#inline-box-height">height of inline
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boxes</a> in <a href="visudet.html#leading">"Leading and
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half-leading"</a></ins>.)
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</blockquote>
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<p>The part of the definition that was in <a
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href="visudet.html#inline-replaced-height">10.6.2</a> is removed:
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<blockquote>
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<p><del>For 'inline' and 'inline-block' elements, the margin box is
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used when calculating the height of the line box.</del>
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</blockquote>
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<!--========================== issue 153 ==========================-->
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<h3 id=u.10.8.1><a
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href="/TR/2010/WD-CSS2-20101207/visudet.html#leading"</a>10.8.1
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Leading and half-leading</h3>
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<p>Inserted the following before the definitions of the keywords of
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'vertical-align' to define precisely which box is aligned:
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<blockquote>
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<p><ins>In the following definitions, for inline non-replaced
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elements, the box used for alignment is the box whose height is the
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'line-height' (containing the box's glyphs and the half-leading on
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each side, see <a
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href="visudet.html#inline-box-height">above</a>). For all other
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elements, the box used for alignment is the margin box.</ins>
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</blockquote>
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<p>Also, to make sure there always is a box whose height is
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'line-height', removed a phrase earlier in the same section:
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<blockquote>
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<p>User agent must align the glyphs in a non-replaced inline box to
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each other by their relevant baselines<del>, and to nested inline
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boxes according to 'vertical-align'</del>.
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</blockquote>
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</BODY>
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</HTML>

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