diff --git a/source b/source
index 7819dd333bb..827280d1ed5 100644
--- a/source
+++ b/source
@@ -62662,27 +62662,33 @@ interface <dfn interface>HTMLTemplateElement</dfn> : <span>HTMLElement</span> {
 
   <p>The <dfn element-attr for="template"><code
   data-x="attr-template-shadowrootmode">shadowrootmode</code></dfn> content attribute is an
-  <span>enumerated attribute</span>. The following table lists the states for this attribute:</p>
+  <span>enumerated attribute</span> with the following keywords and states:</p>
 
   <table>
    <thead>
     <tr>
-     <th>State
-     <th>Keywords
+     <th>State</th>
+     <th>Keywords</th>
      <th>Brief description</th>
+    </tr>
+   </thead>
    <tbody>
     <tr>
      <td><dfn attr-value for="template/shadowrootmode"><code data-x="attr-shadowrootmode-open">open</code></dfn></td>
      <td><dfn data-x="attr-shadowrootmode-open-state">open</dfn></td>
      <td>The template element represents an open declarative shadow root.</td>
+    </tr>
     <tr>
      <td><dfn attr-value for="template/shadowrootmode"><code data-x="attr-shadowrootmode-closed">closed</code></dfn></td>
      <td><dfn data-x="attr-shadowrootmode-closed-state">closed</dfn></td>
      <td>The template element represents a closed declarative shadow root.</td>
+    </tr>
     <tr>
      <td><dfn attr-value for="template/shadowrootmode"><code data-x="attr-shadowrootmode-none">none</code></dfn></td>
      <td><dfn data-x="attr-shadowrootmode-none-state">none</dfn></td>
      <td>The template element does not represent a shadow root.</td>
+    </tr>
+   </tbody>
   </table>
 
   <p>The <code data-x="attr-template-shadowrootmode">shadowrootmode</code> attribute's