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[css2] Fixed height calculation for block boxes to take collapsing margins into account
--HG-- extra : convert_revision : svn%3A73dc7c4b-06e6-40f3-b4f7-9ed1dbc14bfc/trunk%401739
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‎css2/visudet.src‎

Lines changed: 28 additions & 12 deletions
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<html lang="en">
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<!-- $Id: visudet.src,v 2.43 1998-05-08 16:28:35 ijacobs Exp $ -->
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<!-- $Id: visudet.src,v 2.44 1998-09-28 23:24:16 ijacobs Exp $ -->
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<HEAD>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<TITLE>Visual formatting model details</TITLE>
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<!-- Changed by: Ian B. Jacobs, 28-Sep-1998 -->
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</HEAD>
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<BODY>
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<H1 align="center">Visual formatting model details</H1>
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<H3>Block-level, non-replaced elements in normal flow, and
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floating, non-replaced elements</H3>
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<p>If <span class="propinst-top">'top'</span>, <span class="propinst-bottom">'bottom'</span>, <span class="propinst-margin-top">'margin-top'</span>, or <span class="propinst-margin-bottom">'margin-bottom'</span> are 'auto',
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their computed value is 0. If <span class="propinst-height">'height'</span> is 'auto', the height depends
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on whether the element has any block-level children. If it only has
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inline-level children, the height is from the top of the topmost line
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box to the bottom of the bottommost line box. If it has block-level
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children, it is the distance from the top border-edge of the topmost
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block-level child box, to the bottom border-edge of the bottommost
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block-level child box. Only children in the normal flow are taken into
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account (i.e., floating boxes and absolutely
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positioned boxes are ignored, and relatively positioned boxes are considered
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without their offset). Note that the child box may be an <a
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<p>If <span class="propinst-top">'top'</span>, <span
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class="propinst-bottom">'bottom'</span>, <span
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class="propinst-margin-top">'margin-top'</span>, or <span
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class="propinst-margin-bottom">'margin-bottom'</span> are 'auto',
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their computed value is 0. If <span
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class="propinst-height">'height'</span> is 'auto', the height depends
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on whether the element has any block-level children and whether it has
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padding or borders.
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<P>If it only has inline-level children, the height is the distance
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between the top of the topmost line box and the bottom of the
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bottommost line box.
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<P>If it has block-level children, the height is the distance between
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the top border-edge of the topmost block-level child box and the
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bottom border-edge of the bottommost block-level child box. However,
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if the element has a non-zero top padding and/or top border, then the
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content starts at the top <em>margin</em> edge of the topmost child.
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Similarly, if the element has a non-zero bottom padding and/or bottom
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border, then the content ends at the bottom <em>margin</em> edge of
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the bottommost child.
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<P>Only children in the normal flow are taken into account (i.e.,
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floating boxes and absolutely positioned boxes are ignored, and
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relatively positioned boxes are considered without their offset). Note
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that the child box may be an <a
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href="visuren.html#anonymous-block-level">anonymous box.</a>
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<H3><a name="abs-non-replaced-height">Absolutely positioned, non-replaced elements</a></H3>

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