[cssom] Say that ::before and ::after exist for all elements

Author: Simon Pieters

cssom/Overview.html

@@ -293,6 +293,9 @@ <h2 id="terminology"><span class="secno">3 </span>Terminology</h2>
 
 <p class="note">If another styling language becomes supported in user agents, this specification is expected to be updated as necessary.
 
+<p>The terms <dfn id="x::before-pseudo-element">::before pseudo-element</dfn> and <dfn id="x::after-pseudo-element">::after pseudo-element</dfn> refer to the :before and :after pseudo-elements in CSS, except in this
+specification the pseudo-elements are assumed to exist for all elements even if no box is generated for them. <a href="#refsCSS">[CSS]</a>
+
 <h3 id="common-serializing-idioms"><span class="secno">3.1 </span>Common Serializing Idioms</h3>
 
 <p>To <dfn id="escape-a-character">escape a character</dfn> means to create a string of
@@ -2653,12 +2656,12 @@ <h3 id="extensions-to-the-window-interface"><span class="secno">7.2 </span>Exten
  <li><p>If <var title="">pseudoElt</var> is as an
  <a class="external" href="http://dom.spec.whatwg.org/#ascii-case-insensitive">ASCII case-insensitive</a> match for
  either '<code title="">:before</code>' or '<code title="">::before</code>' let
- <var title="">obj</var> be the '::before' pseudo-element of
+ <var title="">obj</var> be the <a href="#x::before-pseudo-element">::before pseudo-element</a> of
  <var title="">elt</var>.</li>
  <li><p>If <var title="">pseudoElt</var> is as an
  <a class="external" href="http://dom.spec.whatwg.org/#ascii-case-insensitive">ASCII case-insensitive</a> match for
  either '<code title="">:after</code>' or '<code title="">::after</code>' let
- <var title="">obj</var> be the '::after' pseudo-element of
+ <var title="">obj</var> be the <a href="#x::after-pseudo-element">::after pseudo-element</a> of
  <var title="">elt</var>.</li>
  <li>
   <p>Return a <a href="#css-declaration-block">CSS declaration block</a> with the
@@ -2741,11 +2744,11 @@ <h3 id="extensions-to-the-element-interface"><span class="secno">7.4 </span>Exte
 <p>The <dfn id="dom-element-pseudo" title="dom-Element-pseudo"><code>pseudo(<var title="">pseudoElt</var>)</code></dfn> method, when invoked, must run the following steps:
 <ol>
  <li><p>If <var title="">pseudoElt</var> is as an <a class="external" href="http://dom.spec.whatwg.org/#ascii-case-insensitive">ASCII case-insensitive</a> match for either '<code title="">:before</code>' or
- '<code title="">::before</code>' return the <code><a href="#pseudoelement">PseudoElement</a></code> representing the '::before' pseudo-element of the <a class="external" href="http://dom.spec.whatwg.org/#context-object">context
- object</a>.</li>
+ '<code title="">::before</code>' return the <code><a href="#pseudoelement">PseudoElement</a></code> representing the <a href="#x::before-pseudo-element">::before pseudo-element</a> of the
+ <a class="external" href="http://dom.spec.whatwg.org/#context-object">context object</a>.</li>
  <li><p>If <var title="">pseudoElt</var> is as an <a class="external" href="http://dom.spec.whatwg.org/#ascii-case-insensitive">ASCII case-insensitive</a> match for either '<code title="">:after</code>' or
- '<code title="">::after</code>' return the <code><a href="#pseudoelement">PseudoElement</a></code> representing the '::after' pseudo-element of the <a class="external" href="http://dom.spec.whatwg.org/#context-object">context
- object</a>.</li>
+ '<code title="">::after</code>' return the <code><a href="#pseudoelement">PseudoElement</a></code> representing the <a href="#x::after-pseudo-element">::after pseudo-element</a> of the
+ <a class="external" href="http://dom.spec.whatwg.org/#context-object">context object</a>.</li>
  <li><p>Return null.</li>
 </ol>
 <p>When invoked with an argument that returns a <code><a href="#pseudoelement">PseudoElement</a></code> object representing a particular pseudo-element, the same object must be

cssom/Overview.src.html

@@ -224,6 +224,9 @@ <h2>Terminology</h2>
 
 <p class=note>If another styling language becomes supported in user agents, this specification is expected to be updated as necessary.
 
+<p>The terms <dfn>::before pseudo-element</dfn> and <dfn>::after pseudo-element</dfn> refer to the :before and :after pseudo-elements in CSS, except in this
+specification the pseudo-elements are assumed to exist for all elements even if no box is generated for them. <span data-anolis-ref>CSS</span>
+
 <h3>Common Serializing Idioms</h3>
 
 <p>To <dfn>escape a character</dfn> means to create a string of
@@ -2584,12 +2587,12 @@ <h3>Extensions to the <code title>Window</code> Interface</h3>
  <li><p>If <var title>pseudoElt</var> is as an
  <span data-anolis-spec=dom>ASCII case-insensitive</span> match for
  either '<code title>:before</code>' or '<code title>::before</code>' let
- <var title>obj</var> be the '::before' pseudo-element of
+ <var title>obj</var> be the <span>::before pseudo-element</span> of
  <var title>elt</var>.</p></li>
  <li><p>If <var title>pseudoElt</var> is as an
  <span data-anolis-spec=dom>ASCII case-insensitive</span> match for
  either '<code title>:after</code>' or '<code title>::after</code>' let
- <var title>obj</var> be the '::after' pseudo-element of
+ <var title>obj</var> be the <span>::after pseudo-element</span> of
  <var title>elt</var>.</p></li>
  <li>
   <p>Return a <span>CSS declaration block</span> with the
@@ -2672,11 +2675,11 @@ <h3>Extensions to the <code title>Element</code> Interface</h3>
 <p>The <dfn title=dom-Element-pseudo><code>pseudo(<var title>pseudoElt</var>)</code></dfn> method, when invoked, must run the following steps:
 <ol>
  <li><p>If <var title>pseudoElt</var> is as an <span data-anolis-spec=dom>ASCII case-insensitive</span> match for either '<code title>:before</code>' or
- '<code title>::before</code>' return the <code>PseudoElement</code> representing the '::before' pseudo-element of the <span data-anolis-spec=dom>context
- object</span>.</p></li>
+ '<code title>::before</code>' return the <code>PseudoElement</code> representing the <span>::before pseudo-element</span> of the
+ <span data-anolis-spec=dom>context object</span>.</p></li>
  <li><p>If <var title>pseudoElt</var> is as an <span data-anolis-spec=dom>ASCII case-insensitive</span> match for either '<code title>:after</code>' or
- '<code title>::after</code>' return the <code>PseudoElement</code> representing the '::after' pseudo-element of the <span data-anolis-spec=dom>context
- object</span>.</p></li>
+ '<code title>::after</code>' return the <code>PseudoElement</code> representing the <span>::after pseudo-element</span> of the
+ <span data-anolis-spec=dom>context object</span>.</p></li>
  <li><p>Return null.</p></li>
 </ol>
 <p>When invoked with an argument that returns a <code>PseudoElement</code> object representing a particular pseudo-element, the same object must be