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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<html lang=en>
<head profile="http://www.w3.org/2006/03/hcard"><meta
content="text/html; charset=utf-8" http-equiv=Content-Type>
<title>CSS Exclusions and Shapes Module Level 3</title>
<link href=default.css rel=stylesheet type="text/css">
<style type="text/css">
/* Alternate stylesheet fonts are here because in some browsers (Opera 11.5) */
/* The fonts are not applied if only loaded from the alternate stylesheet */
/* License font the following two fonts: fonts/Droid-Serif-fontfacekit/Google Android License.txt */
@import url(fonts/Droid-Serif-fontfacekit/stylesheet.css);
@import url(fonts/Droid-Sans-Mono-fontfacekit/stylesheet.css);
.singleImgExample {
display: block;
margin: auto;
}
.example-table {
table-layout: fixed;
width: 100%;
}
.example-table tr td img {
width: 90%;
}
@media screen and (min-width: 68em){
.issue-marker {
position: absolute;
width: 20ex;
margin-left: -22ex;
text-align: right;
margin-bottom: 1em;
}
div.issue-marker .issue-marker {
position: static;
width: auto;
margin-left: 0;
text-align: right;
}
div.issue-marker {
position: absolute;
width: 20ex;
margin-left: -22ex;
}
}
@media screen and (max-width: 68em){
.issue-marker {
margin-bottom: 1em;
}
.issue-marker a:link {
padding-left: 0.5em;
}
}
.issue-marker {
background:#eee;
border:1px solid #ddd;
font-size: 1em;
}
.issue-marker.wrapper {
background: none;
border: none;
}
.issue-marker a:link {
color: #c00;
background: none;
font-weight: normal;
padding-right: 0.5em;
}
.issue-details {
padding:0.5em;
font-size: 0.8em;
line-height: 1.5;
}
.issue-details p{
padding:0;
margin:0;
}
.issue-details .status{
background:#333;
color:white;
float:left;
padding:0.15em 0.8em;
font-size:0.8em;
margin-right:0.8em;
text-transform:uppercase;
}
</style>
<link href="http://www.w3.org/StyleSheets/TR/W3C-ED.css" rel=stylesheet
type="text/css">
<link href=alternate-spec-style.css id=st rel="alternate stylesheet"
title="alternate spec styles" type="text/css">
<body>
<div class=head id=div-head> <!--begin-logo-->
<p><a href="http://www.w3.org/"><img alt=W3C height=48
src="http://www.w3.org/Icons/w3c_home" width=72></a> <!--end-logo-->
<h1 id=css-exclusions-module>CSS Exclusions and Shapes Module Level 3</h1>
<h2 class="no-num no-toc" id=longstatus-date>Editor's Draft 9 February
2012</h2>
<dl>
<dt>This version:
<dd><a
href="http://dev.w3.org/csswg/css3-exclusions/">http://dev.w3.org/csswg/css3-exclusions/</a></dd>
<!--<dd><a href="http://www.w3.org/TR/2012/ED-css3-exclusions-20120209/">http://www.w3.org/TR/2012/WD-css3-exclusions-20120209/</a></dd>-->
<dt>Latest version:
<dd><a
href="http://www.w3.org/TR/css3-exclusions/">http://www.w3.org/TR/css3-exclusions/</a>
<dt>Editor's Draft:
<dd><a
href="http://dev.w3.org/csswg/css3-exclusions/">http://dev.w3.org/csswg/css3-exclusions/</a>
<dt>Previous version:
<dd>None
<dt>Editors:
<dd class=vcard><span class=fn>Vincent Hardy</span>, <span
class=org>Adobe Systems, Inc.</span>, <span
class=email>vhardy@adobe.com</span>
<dd class=vcard><span class=fn>Rossen Atanassov</span>, <span
class=org>Microsoft Corporation</span>, <span
class=email>ratan@microsoft.com</span>
<dt>Issues List:
<dd><a
href="http://wiki.csswg.org/spec/css3-exclusions">http://wiki.csswg.org/spec/css3-exclusions</a>
<dt>Discussion:
<dd><a
href="http://lists.w3.org/Archives/Public/www-style/">www-style@w3.org</a>
with subject line "<code>[css3-exclusions] …message topic…</code>"
</dl>
<!--begin-copyright-->
<p class=copyright><a
href="http://www.w3.org/Consortium/Legal/ipr-notice#Copyright"
rel=license>Copyright</a> © 2012 <a
href="http://www.w3.org/"><acronym
title="World Wide Web Consortium">W3C</acronym></a><sup>®</sup> (<a
href="http://www.csail.mit.edu/"><acronym
title="Massachusetts Institute of Technology">MIT</acronym></a>, <a
href="http://www.ercim.eu/"><acronym
title="European Research Consortium for Informatics and Mathematics">ERCIM</acronym></a>,
<a href="http://www.keio.ac.jp/">Keio</a>), All Rights Reserved. W3C <a
href="http://www.w3.org/Consortium/Legal/ipr-notice#Legal_Disclaimer">liability</a>,
<a
href="http://www.w3.org/Consortium/Legal/ipr-notice#W3C_Trademarks">trademark</a>
and <a
href="http://www.w3.org/Consortium/Legal/copyright-documents">document
use</a> rules apply.</p>
<!--end-copyright-->
<hr title="Separator for header">
</div>
<h2 class="no-num no-toc" id=abstract>Abstract</h2>
<p> CSS exclusions define arbitrary areas around which inline content can
flow. CSS exclusions can be defined on any CSS block-level elements.
<p> CSS Shapes control the geometric shapes used for wrapping inline flow
content outside or inside an element.
<p> Combining CSS Exclusions and CSS Shapes allows sophisticated layouts,
for example having content flow into and/or around circles or other,
arbitrarily complex shapes.
<h2 class="no-num no-toc" id=status>Status of this document</h2>
<!--begin-status-->
<p>This is a public copy of the editors' draft. It is provided for
discussion only and may change at any moment. Its publication here does
not imply endorsement of its contents by W3C. Don't cite this document
other than as work in progress.
<p>The (<a
href="http://lists.w3.org/Archives/Public/www-style/">archived</a>) public
mailing list <a
href="mailto:www-style@w3.org?Subject=%5Bcss3-exclusions%5D%20PUT%20SUBJECT%20HERE">
www-style@w3.org</a> (see <a
href="http://www.w3.org/Mail/Request">instructions</a>) is preferred for
discussion of this specification. When sending e-mail, please put the text
“css3-exclusions” in the subject, preferably like this:
“[<!---->css3-exclusions<!---->] <em>…summary of
comment…</em>”
<p>This document was produced by the <a href="/Style/CSS/members">CSS
Working Group</a> (part of the <a href="/Style/">Style Activity</a>).
<p>This document was produced by a group operating under the <a
href="/Consortium/Patent-Policy-20040205/">5 February 2004 W3C Patent
Policy</a>. W3C maintains a <a href="/2004/01/pp-impl/32061/status"
rel=disclosure>public list of any patent disclosures</a> made in
connection with the deliverables of the group; that page also includes
instructions for disclosing a patent. An individual who has actual
knowledge of a patent which the individual believes contains <a
href="/Consortium/Patent-Policy-20040205/#def-essential">Essential
Claim(s)</a> must disclose the information in accordance with <a
href="/Consortium/Patent-Policy-20040205/#sec-Disclosure">section 6 of the
W3C Patent Policy</a>.</p>
<!--end-status-->
<p>This is the First Public Working Draft of the CSS Exclusions and Shapes
Level 3 Module.
<h2 class="no-num no-toc" id=contents>Table of contents</h2>
<!--begin-toc-->
<ul class=toc>
<li><a href="#intro"><span class=secno>1. </span>Introduction</a>
<li><a href="#definitions"><span class=secno>2. </span>Definitions</a>
<li><a href="#exclusions"><span class=secno>3. </span>Exclusions</a>
<ul class=toc>
<li><a href="#declaring-exclusions"><span class=secno>3.1.
</span>Declaring exclusions</a>
<ul class=toc>
<li><a href="#wrap-flow-property"><span class=secno>3.1.1. </span>The
‘<code class=property>wrap-flow</code>’ property</a>
</ul>
<li><a href="#scope-and-effect-of-exclusions"><span class=secno>3.2.
</span>Scope and Effect of Exclusions</a>
<ul class=toc>
<li><a href="#wrap-margin-property"><span class=secno>3.2.1.
</span>The ‘<code class=property>wrap-margin</code>’
Property</a>
<li><a href="#wrap-padding-property"><span class=secno>3.2.2.
</span>The ‘<code class=property>wrap-padding</code>’
Property</a>
</ul>
<li><a href="#propagation-of-exclusions"><span class=secno>3.3.
</span>Propagation of Exclusions</a>
<ul class=toc>
<li><a href="#wrap-through-property"><span class=secno>3.3.1.
</span>The ‘<code class=property>wrap-through</code>’
Property</a>
<li><a href="#wrap-shorthand-property"><span class=secno>3.3.2.
</span>The ‘<code class=property>wrap</code>’ Shorthand
Property</a>
</ul>
<li><a href="#exclusions-order"><span class=secno>3.4. </span>Exclusions
order</a>
<li><a href="#exclusions-processing-model"><span class=secno>3.5.
</span>Processing model</a>
<ul class=toc>
<li><a href="#exclusions-processing-model-example"><span
class=secno>3.5.1. </span>Example</a>
</ul>
</ul>
<li><a href="#shapes"><span class=secno>4. </span>Shapes</a>
<ul class=toc>
<li><a href="#shapes-from-svg-syntax"><span class=secno>4.1.
</span>Shapes from SVG Syntax</a>
<ul class=toc>
<li><a href="#supported-svg-shapes"><span class=secno>4.1.1.
</span>Supported SVG Shapes</a>
<li><a href="#referencing-svg-shapes"><span class=secno>4.1.2.
</span>Referencing SVG shapes</a>
</ul>
<li><a href="#shapes-from-image"><span class=secno>4.2. </span>Shapes
from Image</a>
<li><a href="#declaring-shapes"><span class=secno>4.3. </span>Declaring
Shapes</a>
<ul class=toc>
<li><a href="#shape-outside-property"><span class=secno>4.3.1.
</span>The ‘<code class=property>shape-outside</code>’
Property</a>
<li><a href="#shape-inside-property"><span class=secno>4.3.2.
</span>The ‘<code class=property>shape-inside</code>’
Property</a>
<li><a href="#shape-image-threshold-property"><span class=secno>4.3.3.
</span>The ‘<code
class=property>shape-image-threshold</code>’ Property</a>
</ul>
</ul>
<li><a href="#conformance"><span class=secno>5. </span>Conformance</a>
<ul class=toc>
<li><a href="#conventions"><span class=secno>5.1. </span>Document
Conventions</a>
<li><a href="#conformance-classes"><span class=secno>5.2.
</span>Conformance Classes</a>
<li><a href="#partial"><span class=secno>5.3. </span> Partial
Implementations</a>
<li><a href="#experimental"><span class=secno>5.4. </span> Experimental
Implementations</a>
<li><a href="#testing"><span class=secno>5.5. </span> Non-Experimental
Implementations</a>
<li><a href="#cr-exit-criteria"><span class=secno>5.6. </span> CR Exit
Criteria</a>
</ul>
<li class=no-num><a href="#acknowledgments">Acknowledgments</a>
<li class=no-num><a href="#references">References</a>
<ul class=toc>
<li class=no-num><a href="#normative-references">Normative
references</a>
<li class=no-num><a href="#other-references">Other references</a>
</ul>
<li class=no-num><a href="#index">Index</a>
<li class=no-num><a href="#property-index">Property index</a>
</ul>
<!--end-toc-->
<h2 id=intro><span class=secno>1. </span>Introduction</h2>
<p><em>This section is not normative.</em>
<p> The exclusions section of this specification defines features that
allow inline flow content to wrap around outside the <a
href="#exclusion-area">exclusion area</a> of elements.
<p> The shapes section of the specification defines properties to control
the geometry of an element's <a href="#exclusion-area">exclusion area</a>
as well as the geometry used for wrapping an element's inline flow
content.
<h2 id=definitions><span class=secno>2. </span>Definitions</h2>
<p><dfn id=exclusion-element>Exclusion element</dfn>
<p> An element that defines an <a href="#exclusion-area">exclusion area</a>
for other elements. The ‘<a href="#wrap-flow"><code
class=property>wrap-flow</code></a>’ property is used to make an
element an exclusion element. An exclusion element contributes its <a
href="#exclusion-area">exclusion area</a> to its <a
href="http://www.w3.org/TR/CSS2/visudet.html#containing-block-details">
containing block's</a> <a href="#wrapping-context">wrapping context</a>
<p><dfn id=exclusion-area>Exclusion area</dfn>
<div class=issue-marker data-bug_id=15087 data-bug_status=NEW> <a
href="https://www.w3.org/Bugs/Public/show_bug.cgi?id=15087">Bug-15087</a>
<div class=issue-details>
<p class=short-desc>Interaction of floats and exclusions (Howcome's
questions)</p>
</div>
</div>
<p> The area used for excluding inline flow content around an exclusion
element. The exclusion area is equivalent to the <a
href="http://www.w3.org/TR/CSS2/box.html#box-dimensions"> border box</a>
for elements with ‘<code class=property>float</code>’ property
computed to ‘<code class=property>none</code>’ and the <a
href="http://www.w3.org/TR/CSS2/box.html#box-dimensions">margin box</a>
for elements with ‘<code class=property>float</code>’ property
computed to a value other than ‘<code
class=property>none</code>’. This specification's ‘<a
href="#shape-outside"><code class=property>shape-outside</code></a>’
property can be used to define arbitrary, non-rectangular exclusion areas.
<p><dfn id=wrapping-context>Wrapping context</dfn>
<div class=issue-marker data-bug_id=15086 data-bug_status=NEW> <a
href="https://www.w3.org/Bugs/Public/show_bug.cgi?id=15086">Bug-15086</a>
<div class=issue-details>
<p class=short-desc>should the wrapping context be generic and include
floats?</p>
</div>
</div>
<p> The wrapping context of an element is a collection of ‘<code
class=css>exclusion areas</code>’. The wrapping context is used to
wrap around inline flow content during layout. An element will wrap its
inline flow content in the area that corresponds to the subtraction of its
wrapping context from its own <a href="#content-area">content area</a>.
<p> An element inherits its <a
href="http://www.w3.org/TR/CSS2/visudet.html#containing-block-details">containing
block's</a> wrapping context unless it specifically resets it using the
‘<a href="#wrap-through"><code
class=property>wrap-through</code></a>’ property.
<p><dfn id=content-area>Content area</dfn>
<p> The area used for layout of the inline flow content of an element. By
default the area is equivalent to the <a
href="http://www.w3.org/TR/CSS2/box.html#box-dimensions">content box</a>.
This specification's ‘<a href="#shape-inside"><code
class=property>shape-inside</code></a>’ property can define
arbitrary, non-rectangular content areas.
<p><dfn id=outside-and-inside title=outside-inside>Outside and inside</dfn>
<p> In this specification, ‘<code
class=property>outside</code>’ refers to DOM content that is not a
descendant of an element while ‘<code
class=property>inside</code>’ refers to the element's descendants.
<h2 id=exclusions><span class=secno>3. </span>Exclusions</h2>
<p> Exclusion elements define exclusion areas that contribute to their
containing block's wrapping context. As a consequence, exclusions impact
the layout of their containing block's descendants.
<p>
<p> Elements layout their inline content in their <a
href="#content-area">content area</a> and avoid the areas in their
associated wrapping context. If the element is itself an exclusion, it
does not wrap around its own exclusion shape and the impact of other
exclusions on other exclusions is controlled by the ‘<code
class=property>z-index</code>’ property as explained in the <a
href="#exclusions-order">exclusions order</a> section.
<p> The shape properties can is used to change the shape of exclusions.
<h3 id=declaring-exclusions><span class=secno>3.1. </span>Declaring
exclusions</h3>
<p> An element becomes an exclusion when its ‘<a
href="#wrap-flow"><code class=property>wrap-flow</code></a>’
property has a computed value other than ‘<code
class=property>auto</code>’.
<h4 id=wrap-flow-property><span class=secno>3.1.1. </span>The ‘<a
href="#wrap-flow"><code class=property>wrap-flow</code></a>’
property</h4>
<table class=propdef>
<tbody>
<tr>
<th>Name:
<td><dfn id=wrap-flow title="'wrap-flow'">wrap-flow</dfn>
<tr>
<th>Value:
<td><var>auto</var> | <var>both</var> | <var>start</var> |
<var>end</var> | <var>maximum</var> | <var>clear</var>
<tr>
<th>Initial:
<td>auto
<tr>
<th>Applies to:
<td>block-level elements
<tr>
<th>Inherited:
<td>no
<tr>
<th>Percentages:
<td>N/A
<tr>
<th>Media:
<td>visual
<tr>
<th>Computed value:
<td>as specified, except for floats all values compute to ‘<code
class=property>auto</code>’
</table>
<p>The values of this property have the following meanings:
<dl>
<dt><dfn id=auto title="'wrap-flow'!!'auto'">auto</dfn>
<dd> Exclusion is not created and inline flow content interacts with the
element as usual. For example it will wrap around floats and other
elements.
<dt><dfn id=both title="'wrap-flow'!!'both'">both</dfn>
<dd> Inline flow content can flow on all sides of the exclusion.
<dt><dfn id=start title="'wrap-flow'!!'start'">start</dfn>
<dd> Inline flow content can wrap on the start edge of the exclusion area
but must leave the area to end edge of the exclusion area empty.
<dt><dfn id=end title="'wrap-flow'!!'end'">end</dfn>
<dd> Inline flow content can wrap on the end side of the exclusion area
but must leave the area to the start edge of the exclusion area empty.
<dt><dfn id=maximum title="'wrap-flow'!!'maximum'">maximum</dfn>
<dd> Inline flow content can wrap on the side of the exclusion with the
largest available space for the given line, and must leave the other side
of the exclusion empty.
<dt><dfn id=clear title="'wrap-flow'!!'clear'">clear</dfn>
<dd> Inline flow content can only wrap on top and bottom of the exclusion
and must leave the areas to the start and end edges of the exclusion box
empty.
</dl>
<p> Setting the ‘<a href="#wrap-flow"><code
class=property>wrap-flow</code></a>’ property to ‘<code
class=property>both</code>’, ‘<code
class=property>start</code>’, ‘<code
class=property>end</code>’, ‘<code
class=property>maximum</code>’ or ‘<code
class=property>clear</code>’ on an element makes that element an
<span>exclusion element. It's <span>exclusion shape</span> is contributed
to its containing block's wrapping context, causing the containing block's
descendants to wrap around its exclusion area. </span>
<p> The initial value for this property is ‘<code
class=property>auto</code>’.
<p> When the property's computed value is ‘<code
class=property>auto</code>’, the element does not become an <a
href="#exclusion-element">exclusion element</a> unless its ‘<code
class=property>float</code>’ property computed value is not
‘<code class=property>none</code>’. In that case, the element
contributes its ‘<code class=css>border box</code>’ to its
containing block's <a href="#wrapping-context">wrapping context</a> and
content flows around it according to the ‘<code
class=property>clear</code>’ property.
<p> The element will be considered as an exclusion for all inline flow
content descendants of the exclusions' containing block.
<div class=figure> <img
alt="General illustration showing how exclusions combine"
src="images/exclusions-illustration.png" width="70%">
<p class=caption>Combining exclusions</p>
</div>
<p> The above figure illustrates how exclusions are combined. The outermost
box represents an element's content box. The A, B, C and D darker gray
boxes represent exclusions in the element's wrapping context. A, B, C and
D have their respective ‘<a href="#wrap-flow"><code
class=property>wrap-flow</code></a>’ set to ‘<code
class=property>both</code>’, ‘<code
class=property>start</code>’, ‘<code
class=property>end</code>’ and ‘<code
class=property>clear</code>’ respectively. The lighter gray areas
show the additional areas that are excluded for inline layout as a result
of the ‘<a href="#wrap-flow"><code
class=property>wrap-flow</code></a>’ value. For example, the area to
the right of ‘<code class=property>B</code>’ cannot be used
for inline layout because the ‘<a href="#wrap-flow"><code
class=property>wrap-flow</code></a>’ for ‘<code
class=property>B</code>’ is ‘<code
class=property>start</code>’.
<p> The background ‘<code class=property>blue</code>’ area
shows what areas are available for inline content layout. All areas
represented with a light or dark shade of gray are not available for
inline content layout.
<div class=issue-marker data-bug_id=15088 data-bug_status=FIXED> <a
href="https://www.w3.org/Bugs/Public/show_bug.cgi?id=15088">Bug-15088</a>
<div class=issue-details>
<p class=short-desc>Add an example with auto-height content and z-index
for exclusions order.</p>
</div>
</div>
<div class=issue-marker data-bug_id=15084 data-bug_status=NEW> <a
href="https://www.w3.org/Bugs/Public/show_bug.cgi?id=15084">Bug-15084</a>
<div class=issue-details>
<p class=short-desc>Fluidity of the layout with respect to different
amounts of content</p>
</div>
</div>
<div class=example>
<p> The ‘<a href="#wrap-flow"><code
class=property>wrap-flow</code></a>’ property values applied to an
absolutely positioned element.</p>
<code class=html></code>
<pre>
<style type="text/css">
#exclusion {
position: absolute;
background: lightblue;
border: 3px solid blue;
}
</style>
<div style=”position: relative; border: 1px solid black;”>
<div id=”exclusion”>Donec metus messa, mollis...</div>
Lorem ipsum dolor sit amet...
</div>
</pre>
<table class=example-table>
<tbody>
<tr>
<td><code class=html>#exclusion{ wrap-flow: auto; }</code>
<td><code class=html>#exclusion{ wrap-flow: both; }</code>
<tr>
<td><img alt="Example rendering for wrap-side: auto"
src="images/exclusion_wrap_side_auto.png">
<td><img alt="Example rendering for wrap-side: both"
src="images/exclusion_wrap_side_both.png">
<tr>
<td><code class=html>#exclusion{ wrap-flow: start; }</code>
<td><code class=html>#exclusion{ wrap-flow: end; }</code>
<tr>
<td><img alt="Example rendering for wrap-side: start"
src="images/exclusion_wrap_side_left.png">
<td><img alt="Example rendering for wrap-side: end"
src="images/exclusion_wrap_side_right.png">
<tr>
<td><code class=html>#exclusion{ wrap-flow: maximum; }</code>
<td><code class=html>#exclusion{ wrap-flow: maximum; }</code>
<tr>
<td><img alt="Example rendering for wrap-side: maximum"
src="images/exclusion_wrap_side_maximum_L.png">
<td><img alt="Example rendering for wrap-side: maximum"
src="images/exclusion_wrap_side_maximum_R.png">
<tr>
<td><code class=html>#exclusion{ wrap-flow: clear; }</code>
<td><code class=html> </code>
<tr>
<td><img alt="Example rendering for wrap-side: clear"
src="images/exclusion_wrap_side_clear.png">
<td>
</table>
</div>
<!-- End section "wrap-flow Property" -->
<!-- End section "Declaring Exclusions" -->
<h3 id=scope-and-effect-of-exclusions><span class=secno>3.2. </span>Scope
and Effect of Exclusions</h3>
<p> An exclusion affects the inline flow content descended from the
exclusion's containing blocks (defined in <a
href="http://www.w3.org/TR/CSS2/visudet.html#containing-block-details">
CSS 2.1 10.1</a>) and that of all descendant elements of the same
containing block. All inline flow content inside the containing block of
the exclusions is affected. To stop the effect of exclusions defined
outside any element, the ‘<a href="#wrap-through"><code
class=property>wrap-through</code></a>’ property can be used (see
definition of Propagation of Exclusions below).
<h4 id=wrap-margin-property><span class=secno>3.2.1. </span>The ‘<a
href="#wrap-margin"><code class=property>wrap-margin</code></a>’
Property</h4>
<p> The ‘<a href="#wrap-margin"><code
class=property>wrap-margin</code></a>’ property can be used to
offset the inline flow content wrapping on the outside of exclusions.
Offsets created by the ‘<a href="#wrap-margin"><code
class=property>wrap-margin</code></a>’ property are offset from the
outside of the exclusion. This property takes on positive values only.
<table class=propdef>
<tbody>
<tr>
<th>Name:
<td><dfn id=wrap-margin title="'wrap-margin'">wrap-margin</dfn>
<tr>
<th>Value:
<td><var><length></var>
<tr>
<th>Initial:
<td>0
<tr>
<th>Applies to:
<td>block-level elements
<tr>
<th>Inherited:
<td>no
<tr>
<th>Percentages:
<td>N/A
<tr>
<th>Media:
<td>visual
<tr>
<th>Computed value:
<td>the absolute length
</table>
<!-- End secion "wrap-margin property" -->
<h4 id=wrap-padding-property><span class=secno>3.2.2. </span>The ‘<a
href="#wrap-padding"><code class=property>wrap-padding</code></a>’
Property</h4>
<p> The ‘<a href="#wrap-padding"><code
class=property>wrap-padding</code></a>’ property can be used to
offset to the inline flow content wrapping on the inside of elements.
Offsets created by the ‘<a href="#wrap-padding"><code
class=property>wrap-padding</code></a>’ property are offset from the
<a href="#content-area">content area</a> of the element. This property
takes on positive values only.
<table class=propdef>
<tbody>
<tr>
<th>Name:
<td><dfn id=wrap-padding title="'wrap-padding'">wrap-padding</dfn>
<tr>
<th>Value:
<td><var><length></var>
<tr>
<th>Initial:
<td>0
<tr>
<th>Applies to:
<td>block-level elements
<tr>
<th>Inherited:
<td>no
<tr>
<th>Percentages:
<td>N/A
<tr>
<th>Media:
<td>visual
<tr>
<th>Computed value:
<td>the absolute length
</table>
<!-- End section "wrap-padding property" -->
<div class=note>Note that the ‘<a href="#wrap-padding"><code
class=property>wrap-padding</code></a>’ property affects layout of
content inside the element it applies to while the ‘<a
href="#wrap-margin"><code class=property>wrap-margin</code></a>’
property affects layout of content outside the element.</div>
<!-- End section "Scope and Effect of Exclusions" -->
<h3 id=propagation-of-exclusions><span class=secno>3.3. </span>Propagation
of Exclusions</h3>
<p> By default, an element inherits its parent <a
href="#wrapping-context">wrapping context</a>. In other words it is
subject to the exclusions defined <a href="#outside-and-inside"
title=outside-inside>outside the element. </a>
<p>Setting the ‘<a href="#wrap-through"><code
class=property>wrap-through</code></a>’ property to ‘<code
class=property>none</code>’ prevents an element from inheriting its
parent wrapping context. In other words, exclusions defined ‘<code
class=property>outside</code>’ the element, have not effect on the
element's children layout.
<div class=note> Exclusions defined by an element's descendants still
contribute to their containing block's <a
href="#wrapping-context">wrapping context</a>. If that containing block is
a child of an element with ‘<a href="#wrap-through"><code
class=property>wrap-through</code></a>’ set to none, or the element
itself, then exclusion still have an effect on the children of that
containing block element.</div>
<h4 id=wrap-through-property><span class=secno>3.3.1. </span>The ‘<a
href="#wrap-through"><code class=property>wrap-through</code></a>’
Property</h4>
<div class=issue-marker data-bug_id=15085 data-bug_status=NEW> <a
href="https://www.w3.org/Bugs/Public/show_bug.cgi?id=15085">Bug-15085</a>
<div class=issue-details>
<p class=short-desc>do we need wrap-through?</p>
</div>
</div>
<table class=propdef>
<tbody>
<tr>
<th>Name:
<td><dfn id=wrap-through title="'wrap-through'">wrap-through</dfn>
<tr>
<th>Value:
<td><a href="#wrap0"><var>wrap</var></a> | <var>none</var>
<tr>
<th>Initial:
<td>wrap
<tr>
<th>Applies to:
<td>block-level elements
<tr>
<th>Inherited:
<td>no
<tr>
<th>Percentages:
<td>N/A
<tr>
<th>Media:
<td>visual
<tr>
<th>Computed value:
<td>as specified
</table>
<p>The values of this property have the following meanings:
<dl>
<dt><dfn id=wrap title="'wrap-through'!!'wrap'">wrap</dfn>
<dd> The element inherits its parent node's <a
href="#wrapping-context">wrapping context</a>. Its descendant inline
content wraps around exclusions defined <a href="#outside-and-inside"
title=outside-inside>outside</a> the element.
</dl>
<dl>
<dt><dfn id=none title="'wrap-through'!!'none'">none</dfn>
<dd> The element does not inherit its parent node's <a
href="#wrapping-context">wrapping context</a>. Its descendants are only
subject to exclusion shapes defined <a href="#outside-and-inside"
title=outside-inside>inside</a> the element.
</dl>
<div class=example>
<p> Using the ‘<a href="#wrap-through"><code
class=property>wrap-through</code></a>’ property to control the
effect of exclusions.</p>
<pre><code class=html>
<style type="text/css">
.exclusion {
wrap-flow: both;
position: absolute;
background-color: rgba(220, 230, 242, 0.5);
}
</style>
<div style=”position: relative;”>
<div class=”exclusion”></div>
<div style=”wrap-through: wrap;”> Lorem ipsum dolor sit amet...</div>
<div style=”wrap-through: none;”> Lorem ipsum dolor sit amet...</div>
</div>
</code></pre>
<img alt="Example rendering of wrap-through: wrap | none"
class=singleImgExample src="images/exclusion_wrap_through.png"
style="max-width:40%"></div>
<!-- End section "wrap-through property" -->
<h4 id=wrap-shorthand-property><span class=secno>3.3.2. </span>The
‘<a href="#wrap0"><code class=property>wrap</code></a>’
Shorthand Property</h4>
<table class=propdef>
<tbody>
<tr>
<th>Name:
<td><dfn id=wrap0 title="'wrap'">wrap</dfn>
<tr>
<th>Value:
<td><var><wrap-flow></var> || <var><wrap-margin></var> [ /
<var><wrap-padding></var>]
<tr>
<th>Initial:
<td>see individual properties
<tr>
<th>Applies to:
<td>block-level elements
<tr>
<th>Inherited:
<td>no
<tr>
<th>Percentages:
<td>N/A
<tr>
<th>Media:
<td>visual
<tr>
<th>Computed value:
<td>see individual properties
</table>