diff --git a/source b/source
index 2bbc7e680d9..ab23b1dd6f4 100644
--- a/source
+++ b/source
@@ -3090,6 +3090,7 @@ a.setAttribute('href', 'https://example.com/'); // change the content attribute
              <dfn data-x-href="https://dom.spec.whatwg.org/#concept-tree-next-sibling">next sibling</dfn>, and
              <dfn data-x-href="https://dom.spec.whatwg.org/#concept-tree-previous-sibling">previous sibling</dfn> concepts</li>
      <li>The <dfn data-x-href="https://dom.spec.whatwg.org/#parent-element">parent element</dfn> concept</li>
+     <li>The <dfn data-x-href="https://dom.spec.whatwg.org/#concept-reflect">reflect</dfn> concept</li>
      <li>The <dfn data-x-href="https://dom.spec.whatwg.org/#document-element">document element</dfn> concept</li>
      <li>The <dfn data-x-href="https://dom.spec.whatwg.org/#in-a-document-tree">in a document tree</dfn>, <dfn data-x-href="https://dom.spec.whatwg.org/#in-a-document">in a document</dfn> (legacy), and <dfn data-x-href="https://dom.spec.whatwg.org/#connected">connected</dfn> concepts</li>
      <li>The <dfn data-x="concept-slot" data-x-href="https://dom.spec.whatwg.org/#concept-slot">slot</dfn> concept, and its <dfn data-x="slot-name" data-x-href="https://dom.spec.whatwg.org/#slot-name">name</dfn> and <dfn data-x-href="https://dom.spec.whatwg.org/#slot-assigned-nodes">assigned nodes</dfn></li>
@@ -7540,7 +7541,7 @@ a.setAttribute('href', 'https://example.com/'); // change the content attribute
 
   <h4>Reflecting content attributes in IDL attributes</h4>
 
-  <p>Some IDL attributes are defined to <dfn>reflect</dfn> a particular content attribute. This
+  <p>Some IDL attributes are defined to <span>reflect</span> a particular content attribute. This
   means that on getting, the IDL attribute returns the current value of the content attribute, and
   on setting, the IDL attribute changes the value of the content attribute to the given value.</p>