correct some fixable broken links (mdn#195)

files/en-us/web/css/specificity/index.html

@@ -10,7 +10,7 @@
 ---
 <div>{{CSSRef}}</div>
 
-<p class="summary"><strong>Specificity</strong> is the means by which browsers decide which CSS property values are the most relevant to an element and, therefore, will be applied. Specificity is based on the matching rules which are composed of different sorts of <a href="/en-US/docs/Web/CSS/CSS_Reference#Selectors">CSS selectors</a>.</p>
+<p class="summary"><strong>Specificity</strong> is the means by which browsers decide which CSS property values are the most relevant to an element and, therefore, will be applied. Specificity is based on the matching rules which are composed of different sorts of <a href="/en-US/docs/Web/CSS/Reference#Selectors">CSS selectors</a>.</p>
 
 <h2 id="How_is_specificity_calculated">How is specificity calculated?</h2>
 

files/en-us/web/html/element/video/index.html

@@ -58,14 +58,14 @@ <h2 id="Attributes">Attributes</h2>
  <p>Use the <a href="#disable_pip"><code>disablePictureInPicture</code></a> attribute if you want to disable the Picture-In-Picture mode (and the control).</p>
  </dd>
  <dt>{{htmlattrdef("crossorigin")}}</dt>
- <dd>This enumerated attribute indicates whether to use CORS to fetch the related image. <a href="/en-US/docs/CORS_Enabled_Image">CORS-enabled resources</a> can be reused in the {{HTMLElement("canvas")}} element without being <em>tainted</em>. The allowed values are:
+ <dd>This enumerated attribute indicates whether to use CORS to fetch the related image. <a href="/en-US/docs/Web/HTML/CORS_enabled_image">CORS-enabled resources</a> can be reused in the {{HTMLElement("canvas")}} element without being <em>tainted</em>. The allowed values are:
  <dl>
   <dt><code>anonymous</code></dt>
   <dd>Sends a cross-origin request without a credential. In other words, it sends the <code>Origin:</code> HTTP header without a cookie, X.509 certificate, or performing HTTP Basic authentication. If the server does not give credentials to the origin site (by not setting the <code>Access-Control-Allow-Origin:</code> HTTP header), the image will be <em>tainted</em>, and its usage restricted.</dd>
   <dt><code>use-credentials</code></dt>
   <dd>Sends a cross-origin request with a credential. In other words, it sends the <code>Origin:</code> HTTP header with a cookie, a certificate, or performing HTTP Basic authentication. If the server does not give credentials to the origin site (through <code>Access-Control-Allow-Credentials:</code> HTTP header), the image will be <em>tainted</em> and its usage restricted.</dd>
  </dl>
- When not present, the resource is fetched without a CORS request (i.e. without sending the <code>Origin:</code> HTTP header), preventing its non-tainted used in {{HTMLElement('canvas')}} elements. If invalid, it is handled as if the enumerated keyword <code>anonymous</code> was used. See <a href="/en-US/docs/Web/HTML/CORS_settings_attributes">CORS settings attributes</a> for additional information.</dd>
+ When not present, the resource is fetched without a CORS request (i.e. without sending the <code>Origin:</code> HTTP header), preventing its non-tainted used in {{HTMLElement('canvas')}} elements. If invalid, it is handled as if the enumerated keyword <code>anonymous</code> was used. See <a href="/en-US/docs/Web/HTML/Attributes/crossorigin">CORS settings attributes</a> for additional information.</dd>
  <dt>{{htmlattrdef("currentTime")}}</dt>
  <dd>
  <p>Reading <code>currentTime</code> returns a double-precision floating-point value indicating the current playback position of the media specified in seconds. If the media has not started playing yet, the time offset at which it will begin is returned. Setting <code>currentTime</code> sets the current playback position to the given time and seeks the media to that position if the media is currently loaded.</p>
@@ -230,7 +230,7 @@ <h2 id="Usage_notes">Usage notes</h2>
 <p>Other usage notes:</p>
 
 <ul>
- <li>If you don't specify the <code>controls</code> attribute, the video won't include the browser's default controls; you can create your own custom controls using JavaScript and the {{domxref("HTMLMediaElement")}} API. See <a href="/en-US/docs/Web/Apps/Fundamentals/Audio_and_video_delivery/cross_browser_video_player">Creating a cross-browser video player</a> for more details.</li>
+ <li>If you don't specify the <code>controls</code> attribute, the video won't include the browser's default controls; you can create your own custom controls using JavaScript and the {{domxref("HTMLMediaElement")}} API. See <a href="/en-US/docs/Web/Guide/Audio_and_video_delivery/cross_browser_video_player">Creating a cross-browser video player</a> for more details.</li>
  <li>To allow precise control over your video (and audio) content, <code>HTMLMediaElement</code>s fire many different <a href="/en-US/docs/Web/Guide/Events/Media_events">events</a>. In addition to providing controllability, these events let you monitor the progress of both download and playback of the media, as well as the playback state and position.</li>
  <li>You can use the {{cssxref("object-position")}} property to adjust the positioning of the video within the element's frame, and the {{cssxref("object-fit")}} property to control how the video's size is adjusted to fit within the frame.</li>
  <li>To show subtitles/captions along with your video, you can use some JavaScript along with the {{htmlelement("track")}} element and the <a href="/en-US/docs/Web/API/WebVTT_API">WebVTT</a> format. See <a href="/en-US/docs/Web/Guide/Audio_and_video_delivery/Adding_captions_and_subtitles_to_HTML5_video">Adding captions and subtitles to HTML5 video</a> for more information.</li>
@@ -388,8 +388,8 @@ <h2 id="Technical_summary">Technical summary</h2>
 <table class="properties">
  <tbody>
   <tr>
-   <th scope="row"><a href="/en-US/docs/Web/HTML/Content_categories">Content categories</a></th>
-   <td><a href="/en-US/docs/Web/HTML/Content_categories#Flow_content">Flow content</a>, phrasing content, embedded content. If it has a {{htmlattrxref("controls", "video")}} attribute: interactive content and palpable content.</td>
+   <th scope="row"><a href="/en-US/docs/Web/Guide/HTML/Content_categories">Content categories</a></th>
+   <td><a href="/en-US/docs/Web/Guide/HTML/Content_categories#Flow_content">Flow content</a>, phrasing content, embedded content. If it has a {{htmlattrxref("controls", "video")}} attribute: interactive content and palpable content.</td>
   </tr>
   <tr>
    <th scope="row">Permitted content</th>