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[css-content-3] Editorial clean-up of quotes section
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‎css-content-3/Overview.bs‎

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@@ -378,17 +378,16 @@ Element Content</h3>
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<h3 id="quotes">
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Quotes</h3>
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HTML has long had the <code>q</code> element,
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used to delimit quotations.
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The ''quotes'' property,
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The ''quotes'' property, which defines the [=quotation mark system=] of an
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element,
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in conjunction with the various ''*-quote'' values of the 'content' property,
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can be used to properly style such quotations.
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which insert corresponding quotation marks as generated content,
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can be used to automatically insert opening and closing quotation marks,
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such as for the HTML <{q}> element.
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<h4 id="quotes-property">
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Specifying quotes with the 'quotes' property</h4>
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<pre class='propdef'>
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Name: quotes
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Value: auto | none | [ <<string>> <<string>> ]+
@@ -402,7 +401,11 @@ Specifying quotes with the 'quotes' property</h4>
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<p class=all-media>User agents are expected to support this property on all media, including non-visual ones.</p>
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This property specifies quotation marks for any number of embedded quotations. Values have the following meanings:
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This property specifies the <dfn>quotation mark system</dfn> for the element,
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defining how the 'content' property’s
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''content/open-quote'' and ''content/close-quote'' values behave.
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See [[#quote-values]].
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Values have the following meanings:
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<dl dfn-type=value dfn-for=quotes>
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<dt><dfn>none</dfn>
@@ -413,10 +416,9 @@ Specifying quotes with the 'quotes' property</h4>
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<dt><dfn>auto</dfn>
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<dd>
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A typographically appropriate [=used value=] for 'quotes'
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A typographically appropriate [=quotation mark system=]
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is automatically chosen by the UA
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based on the [=content language=]
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of the parent
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based on the [=content language=] of the parent
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(or, if there is no parent, of the element itself).
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Note: The Unicode Common Locale Data Repository [[CLDR]]
@@ -428,14 +430,15 @@ Specifying quotes with the 'quotes' property</h4>
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<dt>[ <<string>> <<string>> ]+
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<dd>
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Values for the ''open-quote'' and ''close-quote'' values of the 'content' property
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are taken from this list of pairs of quotation marks (opening and closing).
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The first (leftmost) pair represents the outermost level of quotation,
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the second pair the first level of embedding, etc.
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The user agent must apply the appropriate pair of quotation marks according to the level of embedding.
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The [=quotation mark system=] is defined as
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the specified list of pairs of quotation marks (opening and closing).
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The first pair represents the outermost level of quotation,
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the second pair the next level of embedding, etc.
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Within a pair,
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the ''open-quote'' value refers to the first <<string>>,
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''close-quote'' refers to the second.
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</dl>
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<h4 id="quote-values">
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The *-quote values of the content property</h4>
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@@ -447,28 +450,28 @@ The *-quote values of the content property</h4>
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<dt><dfn>open-quote</dfn>
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<dt><dfn>close-quote</dfn>
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<dd>
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These values are replaced by the appropriate string from the 'quotes' property,
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and increments (decrements) the level of nesting for quotes.
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See [[#quotes-property]] for more information.
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These values are replaced by the appropriate string
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as defined by the 'quotes' property,
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and increments (for ''no-open-quote'')
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or decrements (for ''no-close-quote'')
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the level of nesting for quotes.
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<dt><dfn>no-open-quote</dfn>
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<dt><dfn>no-close-quote</dfn>
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<dd>
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Inserts nothing (as in ''content/none''),
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but increments (decrements) the level of nesting for quotes.
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See [[#quotes-property]] for more information.
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but increments (for ''no-open-quote'')
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or decrements (for ''no-close-quote'')
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the level of nesting for quotes.
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</dl>
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Quotation marks are inserted in appropriate places in a document
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Quotation marks can be inserted in appropriate places in a document
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with the ''open-quote'' and ''close-quote'' values of the 'content' property.
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Each occurrence of ''open-quote'' or ''close-quote''
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is replaced by one of the strings from the value of 'quotes',
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is replaced by a quotation mark string
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as defined by the [=quotation mark system=] specified by the 'quotes' property,
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based on the depth of nesting.
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''open-quote'' refers to the first of a pair of quotes,
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''close-quote'' refers to the second.
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Which pair of quotes is used depends on the nesting level of quotes:
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the number of occurrences of ''open-quote'' in all generated text before the current occurrence,
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minus the number of occurrences of ''close-quote''.
@@ -477,34 +480,33 @@ The *-quote values of the content property</h4>
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If the depth is greater than the number of pairs,
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the last pair is repeated.
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Note that this quoting depth is independent of
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Note: Quote depth is independent of
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the nesting of the source document or the formatting structure.
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Note: Quote nesting, like [[css-lists-3#inheriting-counters|counter inheritance]],
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operates on the “flattened element tree”
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Also, like [[css-lists-3#inheriting-counters|counter inheritance]],
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it operates on the “flattened element tree”
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in the context of the [[DOM]].
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Some typographic styles require open quotation marks to be repeated
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before every paragraph of a quote spanning several paragraphs,
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but only the last paragraph ends with a closing quotation mark.
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In CSS, this can be achieved by inserting "phantom" closing quotes.
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The keyword ''no-close-quote'' decrements the quoting level,
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but does not insert a quotation mark.
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<div class="example">
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The following style sheet puts opening quotation marks on every paragraph in a <code>blockquote</code>, and inserts a single closing quote at the end:
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Some typographic styles require open quotation marks to be repeated
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before every paragraph of a quote spanning several paragraphs,
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but only the last paragraph ends with a closing quotation mark.
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In CSS, this can be achieved by inserting "phantom" closing quotes.
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The keyword ''no-close-quote'' decrements the quoting level,
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but does not insert a quotation mark.
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The following style sheet puts opening quotation marks on every paragraph in a <code>blockquote</code>,
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and inserts a single closing quote at the end:
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<pre>
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blockquote p:before { content: open-quote }
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blockquote p:after { content: no-close-quote }
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blockquote p::before { content: open-quote }
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blockquote p::after { content: no-close-quote }
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blockquote p:last-child::after { content: close-quote }
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</pre>
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</div>
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For symmetry, there is also a ''no-open-quote'' keyword,
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which inserts nothing,
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but increments the quotation depth by one.
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For symmetry, there is also a ''no-open-quote'' keyword,
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which inserts nothing,
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but increments the quotation depth by one.
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</div>
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Note: If a quotation is in a different language than the surrounding text,
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it is customary to quote the text with the quote marks of the language of the surrounding text,
@@ -597,9 +599,6 @@ The *-quote values of the content property</h4>
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</div>
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<h3 id="leaders">
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Leaders</h3>
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@@ -1327,17 +1326,19 @@ bookmark-state</h3>
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* what ::outside::before matches in this case
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-->
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<h2 id="changes">Changes since the 2 June 2016 Working Draft</h2>
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<h2 id="changes">Changes</h2>
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Significant changes since the <a href="https://www.w3.org/TR/2016/WD-css-content-3-20160602/">2 June 2016 Working Draft</a>
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Significant changes since the <a href="https://www.w3.org/TR/2019/WD-css-content-3-20190802/">2 August 2019 Working Draft</a>
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consist primarily of:
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<ul>
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<li>Adding ''quotes/auto'' as the initial value of 'quotes'.
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<li>Lots of miscellaneous spec clean up: errors, cross-references, overly-loose or sloppy definitions, etc.
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<li>Updated ''quotes/auto'' to reference the <em>parent</em> [=content language=]
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rather than the [=content language=] of the element itself.
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(<a href="https://github.com/w3c/csswg-drafts/issues/5478">Issue 5478</a>)
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<li>Miscellaneous editorial spec clean up.
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</ul>
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See also <a href="https://www.w3.org/TR/2016/WD-css-content-3-20160602/#changes">previous changes</a>.
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See also <a href="https://www.w3.org/TR/2019/WD-css-content-3-20190802/#changes">previous changes</a>.
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<h2 class="no-num" id="acknowledgements">Acknowledgements</h2>
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