Sync WCAG-2.1 branch contents with its change log and errata

guidelines/input-purposes.html

@@ -48,7 +48,7 @@ <h2>Input Purposes for User Interface Components</h2>
 		<li><strong>bday-month</strong> - Month component of birthday</li>
 		<li><strong>bday-year</strong> - Year component of birthday</li>
 		<li><strong>sex</strong> - Gender identity (e.g., Female, Fa’afafine)</li>
-		<li><strong>url</strong> - Home page or other Web page corresponding to the company, person, address, or contact information in the other fields associated with this field</li>
+		<li><strong>url</strong> - Home page or other web page corresponding to the company, person, address, or contact information in the other fields associated with this field</li>
 		<li><strong>photo</strong> - Photograph, icon, or other image corresponding to the company, person, address, or contact information in the other fields associated with this field</li>
 		<li><strong>tel</strong> - Full telephone number, including country code</li>
 		<li><strong>tel-country-code</strong> - Country code component of the telephone number</li>

guidelines/relative-luminance.html

@@ -341,7 +341,7 @@ <h1>MathML version of the relative luminance definition</h1>
         </div>
         <div class="note" role="note" id="issue-container-generatedID-129"><div role="heading" class="note-title marker" id="h-note-129" aria-level="3"><span>Note</span><!---0.410359%--></div><p class="">Before May 2021 the value of 0.04045 in the definition was different (0.03928). It was taken from an older version of the specification and has been updated. It has no practical effect on the calculations in the context of these guidelines.</p></div>
 
-        <div class="note" role="note" id="issue-container-generatedID-130"><div role="heading" class="note-title marker" id="h-note-130" aria-level="3"><span>Note</span><!---0.410359%--></div><p class="">Almost all systems used today to view Web content assume sRGB encoding. Unless it
+        <div class="note" role="note" id="issue-container-generatedID-130"><div role="heading" class="note-title marker" id="h-note-130" aria-level="3"><span>Note</span><!---0.410359%--></div><p class="">Almost all systems used today to view web content assume sRGB encoding. Unless it
           is known that another color space will be used to process and display the content,
           authors should evaluate using sRGB colorspace. If using other color spaces, see <a href="https://www.w3.org/WAI/WCAG22/Understanding/contrast-minimum">Understanding Success Criterion 1.4.3</a>.
         </p></div>

guidelines/sc/20/audio-control.html

@@ -4,12 +4,12 @@ <h4>Audio Control</h4>
 
    <p class="conformance-level">A</p>
 
-   <p>If any audio on a Web page plays automatically for more than 3 seconds, either a <a>mechanism</a> is available to pause or stop the audio, or a mechanism is available to control audio
+   <p>If any audio on a web page plays automatically for more than 3 seconds, either a <a>mechanism</a> is available to <a>pause</a> or stop the audio, or a mechanism is available to control audio
       volume independently from the overall system volume level.
    </p>
 
    <p class="note">Since any content that does not meet this success criterion can interfere with a user's
-      ability to use the whole page, all content on the Web page (whether or not it is used
+      ability to use the whole page, all content on the web page (whether or not it is used
       to meet other success criteria) must meet this success criterion. See <a href="#cc5">Conformance Requirement 5: Non-Interference</a>.
    </p>
 

guidelines/sc/20/bypass-blocks.html

@@ -4,7 +4,7 @@ <h4>Bypass Blocks</h4>
 
    <p class="conformance-level">A</p>
 
-   <p>A <a>mechanism</a> is available to bypass blocks of content that are repeated on multiple <a>Web pages</a>.
+   <p>A <a>mechanism</a> is available to bypass blocks of content that are repeated on multiple <a>web pages</a>.
    </p>
 
 </section>

guidelines/sc/20/consistent-identification.html

@@ -4,7 +4,7 @@ <h4>Consistent Identification</h4>
 
    <p class="conformance-level">AA</p>
 
-   <p>Components that have the <a>same functionality</a> within a <a>set of Web pages</a> are identified consistently.
+   <p>Components that have the <a>same functionality</a> within a <a>set of web pages</a> are identified consistently.
    </p>
 
 </section>

guidelines/sc/20/consistent-navigation.html

@@ -4,7 +4,7 @@ <h4>Consistent Navigation</h4>
 
    <p class="conformance-level">AA</p>
 
-   <p>Navigational mechanisms that are repeated on multiple <a>Web pages</a> within a <a>set of Web pages</a> occur in the <a>same relative order</a> each time they are repeated, unless a change is initiated by the user.
+   <p>Navigational mechanisms that are repeated on multiple <a>web pages</a> within a <a>set of web pages</a> occur in the <a>same relative order</a> each time they are repeated, unless a change is initiated by the user.
    </p>
 
 </section>

guidelines/sc/20/error-prevention-all.html

@@ -4,13 +4,13 @@ <h4>Error Prevention (All)</h4>
 
    <p class="conformance-level">AAA</p>
 
-   <p>For <a>Web pages</a> that require the user to submit information, at least one of the following is true:
+   <p>For <a>web pages</a> that require the user to submit information, at least one of the following is true:
    </p>
 
    <dl>
      <dt>Reversible</dt><dd>Submissions are reversible.</dd>
-     <dt>Checked</dt><dd>Data entered by the user is checked for input errors and the user is provided an opportunity to correct them.</dd>
-     <dt>Confirmed</dt><dd>A mechanism is available for reviewing, confirming, and correcting information before finalizing the submission.</dd>
+     <dt>Checked</dt><dd>Data entered by the user is checked for <a>input errors</a> and the user is provided an opportunity to correct them.</dd>
+     <dt>Confirmed</dt><dd>A <a>mechanism</a> is available for reviewing, confirming, and correcting information before finalizing the submission.</dd>
   </dl>
 
 </section>

guidelines/sc/20/error-prevention-legal-financial-data.html

@@ -4,14 +4,14 @@ <h4>Error Prevention (Legal, Financial, Data)</h4>
 
    <p class="conformance-level">AA</p>
 
-   <p>For <a>Web pages</a> that cause <a>legal commitments</a> or financial transactions for the user to occur, that modify or delete <a>user-controllable</a> data in data storage systems, or that submit user test responses, at least one of
+   <p>For <a>web pages</a> that cause <a>legal commitments</a> or financial transactions for the user to occur, that modify or delete <a>user-controllable</a> data in data storage systems, or that submit user test responses, at least one of
       the following is true:
    </p>
 
    <dl>
      <dt>Reversible</dt><dd>Submissions are reversible.</dd>
-     <dt>Checked</dt><dd>Data entered by the user is checked for input errors and the user is provided an opportunity to correct them.</dd>
-     <dt>Confirmed</dt><dd>A mechanism is available for reviewing, confirming, and correcting information before finalizing the submission.</dd>
+     <dt>Checked</dt><dd>Data entered by the user is checked for <a>input errors</a> and the user is provided an opportunity to correct them.</dd>
+     <dt>Confirmed</dt><dd>A <a>mechanism</a> is available for reviewing, confirming, and correcting information before finalizing the submission.</dd>
   </dl>
 
 </section>

guidelines/sc/20/focus-order.html

@@ -4,7 +4,7 @@ <h4>Focus Order</h4>
 
    <p class="conformance-level">A</p>
 
-   <p>If a <a>Web page</a> can be <a>navigated sequentially</a> and the navigation sequences affect meaning or operation, focusable components receive
+   <p>If a <a>web page</a> can be <a>navigated sequentially</a> and the navigation sequences affect meaning or operation, focusable components receive
       focus in an order that preserves meaning and operability.
    </p>
 

guidelines/sc/20/focus-visible.html

@@ -4,8 +4,7 @@ <h4>Focus Visible</h4>
 
    <p class="conformance-level">AA</p>
 
-   <p>Any keyboard operable user interface has a mode of operation where the keyboard focus
-      indicator is visible.
+   <p>Any keyboard operable user interface has a mode of operation where the keyboard focus indicator is visible.
    </p>
 
 </section>

guidelines/sc/20/language-of-page.html

@@ -4,7 +4,7 @@ <h4>Language of Page</h4>
 
    <p class="conformance-level">A</p>
 
-   <p>The default <a>human language</a> of each <a>Web page</a> can be <a>programmatically determined</a>.
+   <p>The default <a>human language</a> of each <a>web page</a> can be <a>programmatically determined</a>.
    </p>
 
 </section>

guidelines/sc/20/language-of-parts.html

@@ -6,7 +6,7 @@ <h4>Language of Parts</h4>
 
    <p>The <a>human language</a> of each passage or phrase in the content can be <a>programmatically determined</a> except for proper names, technical terms, words of indeterminate language, and words
       or phrases that have become part of the vernacular of the immediately surrounding
-      text.
+     <a>text</a>.
    </p>
 
 </section>

guidelines/sc/20/link-purpose-link-only.html

@@ -4,7 +4,7 @@ <h4>Link Purpose (Link Only)</h4>
 
    <p class="conformance-level">AAA</p>
 
-   <p>A <a>mechanism</a> is available to allow the purpose of each link to be identified from link text alone,
+  <p>A <a>mechanism</a> is available to allow the <a>purpose of each link</a> to be identified from link text alone,
       except where the purpose of the link would be <a>ambiguous to users in general</a>.
    </p>
 

guidelines/sc/20/location.html

@@ -4,7 +4,7 @@ <h4>Location</h4>
 
    <p class="conformance-level">AAA</p>
 
-   <p>Information about the user's location within a <a>set of Web pages</a> is available.
+   <p>Information about the user's location within a <a>set of web pages</a> is available.
    </p>
 
 </section>

guidelines/sc/20/multiple-ways.html

@@ -4,7 +4,7 @@ <h4>Multiple Ways</h4>
 
    <p class="conformance-level">AA</p>
 
-   <p>More than one way is available to locate a <a>Web page</a> within a <a>set of Web pages</a> except where the Web Page is the result of, or a step in, a <a>process</a>.
+   <p>More than one way is available to locate a <a>web page</a> within a <a>set of web pages</a> except where the web page is the result of, or a step in, a <a>process</a>.
    </p>
 
 </section>

guidelines/sc/20/name-role-value.html

@@ -5,10 +5,10 @@ <h4>Name, Role, Value</h4>
    <p class="conformance-level">A</p>
 
    <p>For all <a>user interface components</a> (including but not limited to: form elements, links and components generated by scripts),
-      the <a>name</a> and <a>role</a> can be <a>programmatically determined</a>; states, properties, and values that can be set by the user can be <a>programmatically set</a>; and notification of changes to these items is available to <a>user agents</a>, including <a>assistive technologies</a>.
+     the <a>name</a> and <a>role</a> can be <a>programmatically determined</a>; <a>states</a>, properties, and values that can be set by the user can be <a>programmatically set</a>; and notification of changes to these items is available to <a>user agents</a>, including <a>assistive technologies</a>.
    </p>
 
-   <p class="note">This success criterion is primarily for Web authors who develop or script their own
+   <p class="note">This success criterion is primarily for web authors who develop or script their own
       user interface components. For example, standard HTML controls already meet this success
       criterion when used according to specification.
    </p>

guidelines/sc/20/no-keyboard-trap.html

@@ -10,7 +10,7 @@ <h4>No Keyboard Trap</h4>
    </p>
 
    <p class="note">Since any content that does not meet this success criterion can interfere with a user's
-      ability to use the whole page, all content on the Web page (whether it is used to
+      ability to use the whole page, all content on the web page (whether it is used to
       meet other success criteria or not) must meet this success criterion. See <a href="#cc5">Conformance Requirement 5: Non-Interference</a>.
    </p>
 

guidelines/sc/20/pause-stop-hide.html

@@ -15,7 +15,7 @@ <h4>Pause, Stop, Hide</h4>
 
          <p>For any moving, blinking or scrolling information that (1) starts automatically, (2)
             lasts more than five seconds, and (3) is presented in parallel with other content,
-            there is a mechanism for the user to <a>pause</a>, stop, or hide it unless the movement, blinking, or scrolling is part of an activity
+           there is a <a>mechanism</a> for the user to <a>pause</a>, stop, or hide it unless the movement, blinking, or scrolling is part of an activity
             where it is <a>essential</a>; and
          </p>
 
@@ -39,7 +39,7 @@ <h4>Pause, Stop, Hide</h4>
    </p>
 
    <p class="note">Since any content that does not meet this success criterion can interfere with a user's
-      ability to use the whole page, all content on the Web page (whether it is used to
+      ability to use the whole page, all content on the web page (whether it is used to
       meet other success criteria or not) must meet this success criterion. See <a href="#cc5">Conformance Requirement 5: Non-Interference</a>.
    </p>
 

guidelines/sc/20/reading-level.html

@@ -4,7 +4,7 @@ <h4>Reading Level</h4>
 
    <p class="conformance-level">AAA</p>
 
-   <p>When text requires reading ability more advanced than the <a>lower secondary education level</a> after removal of proper names and titles, <a>supplemental content</a>, or a version that does not require reading ability more advanced than the lower
+  <p>When text requires reading ability more advanced than the <a>lower secondary education level</a> after removal of proper names and titles, <a>supplemental content</a>, or a version that does not require reading ability more advanced than the lower
       secondary education level, is available.
    </p>
 

guidelines/sc/20/three-flashes-or-below-threshold.html

@@ -9,7 +9,7 @@ <h4>Three Flashes or Below Threshold</h4>
    </p>
 
    <p class="note">Since any content that does not meet this success criterion can interfere with a user's
-      ability to use the whole page, all content on the Web page (whether it is used to
+      ability to use the whole page, all content on the web page (whether it is used to
       meet other success criteria or not) must meet this success criterion. See <a href="#cc5">Conformance Requirement 5: Non-Interference</a>.
    </p>
 

guidelines/sc/20/timing-adjustable.html

@@ -41,7 +41,7 @@ <h4>Timing Adjustable</h4>
 
       <dd>
 
-         <p>The time limit is a required part of a real-time event (for example, an auction),
+        <p>The time limit is a required part of a <a>real-time event</a> (for example, an auction),
             and no alternative to the time limit is possible; or
          </p>
 

guidelines/sc/20/visual-presentation.html

@@ -11,7 +11,7 @@ <h4>Visual Presentation</h4>
      <li>Width is no more than 80 characters or glyphs (40 if CJK).</li>   
      <li>Text is not justified (aligned to both the left and the right margins).</li>   
      <li>Line spacing (leading) is at least space-and-a-half within paragraphs, and paragraph spacing is at least 1.5 times larger than the line spacing.</li>   
-     <li>Text can be resized without assistive technology up to 200 percent in a way that does not require the user to scroll horizontally to read a line of text <a>on a full-screen window</a>.</li>   
+     <li>Text can be resized without <a>assistive technology</a> up to 200 percent in a way that does not require the user to scroll horizontally to read a line of text <a>on a full-screen window</a>.</li>   
   </ul>
 
 </section>

guidelines/sc/21/content-on-hover-or-focus.html

@@ -19,7 +19,7 @@ <h4>Content on Hover or Focus</h4>
 
   </dl>
 
-    	<p>Exception: The visual presentation of the additional content is controlled by the user agent and is not modified by the author.</p>
+    	<p>Exception: The visual presentation of the additional content is controlled by the <a>user agent</a> and is not modified by the author.</p>
 
     	<p class="note">Examples of additional content controlled by the user agent include browser tooltips created through use of the HTML <a href="https://www.w3.org/TR/html/dom.html#the-title-attribute"><code>title</code> attribute</a>.</p>
      <p class="note">Custom tooltips, sub-menus, and other nonmodal popups that display on hover and focus are examples of additional content covered by this criterion.</p>

guidelines/sc/21/non-text-contrast.html

@@ -10,7 +10,7 @@ <h4>Non-text Contrast</h4>
 
       <dt>User Interface Components</dt>
 
-     <dd>Visual information required to identify <a>user interface components</a> and <a>states</a>, except for inactive components or where the appearance of the component is determined by the user agent and not modified by the author;</dd>
+     <dd>Visual information required to identify <a>user interface components</a> and <a>states</a>, except for inactive components or where the appearance of the component is determined by the <a>user agent</a> and not modified by the author;</dd>
 
       <dt>Graphical Objects</dt>
 

guidelines/sc/21/reflow.html

@@ -11,7 +11,7 @@ <h4>Reflow</h4>
    </ul>
    <p>Except for parts of the content which require two-dimensional layout for usage or meaning.</p>
 
-   <p class="note">320 CSS pixels is equivalent to a starting viewport width of 1280 CSS pixels wide at 400% zoom. For web content which is designed to scroll horizontally (e.g., with vertical text), 256 CSS pixels is equivalent to a starting viewport height of 1024 CSS pixels at 400% zoom.</p>
+  <p class="note">320 CSS pixels is equivalent to a starting <a>viewport</a> width of 1280 CSS pixels wide at 400% zoom. For web content which is designed to scroll horizontally (e.g., with vertical text), 256 CSS pixels is equivalent to a starting viewport height of 1024 CSS pixels at 400% zoom.</p>
 
    <p class="note">Examples of content which requires two-dimensional layout are images required for understanding (such as maps and diagrams), video, games, presentations, data tables (not individual cells), and interfaces where it is necessary to keep toolbars in view while manipulating content. It is acceptable to provide two-dimensional scrolling for such parts of the content.</p>
 

guidelines/sc/21/target-size-enhanced.html

@@ -9,11 +9,11 @@ <h4>Target Size (Enhanced)</h4>
 	<dt>Equivalent</dt> 
   <dd>The target is available through an equivalent link or control on the same page that is at least 44 by 44 CSS pixels;</dd>
 	<dt>Inline</dt> 
-  <dd>The target is in a sentence or block of text;</dd>
+  <dd>The target is in a sentence or <a>block of text</a>;</dd>
 	<dt>User Agent Control</dt> 
-  <dd>The size of the target is determined by the user agent and is not modified by the author;</dd>
+  <dd>The size of the target is determined by the <a>user agent</a> and is not modified by the author;</dd>
 	<dt>Essential</dt> 
-  <dd>A particular presentation of the target is <a>essential</a> to the information being conveyed.</dd>
+  <dd>A particular <a>presentation</a> of the target is <a>essential</a> to the information being conveyed.</dd>
 </dl>  
 
 </section>

guidelines/sc/21/text-spacing.html

@@ -13,6 +13,6 @@ <h4>Text Spacing</h4>
      <li>Word spacing to at least 0.16 times the font size.</li>
    </ul>
 
- <p>Exception: Human languages and scripts that do not make use of one or more of these text style properties in written text can conform using only the properties that exist for that combination of language and script.</p>
+ <p>Exception: <a>Human languages</a> and scripts that do not make use of one or more of these text style properties in written text can conform using only the properties that exist for that combination of language and script.</p>
 
 </section>