diff --git a/aria-practices.html b/aria-practices.html
index 5998578527..03143a3381 100644
--- a/aria-practices.html
+++ b/aria-practices.html
@@ -1636,7 +1636,7 @@ <h3>Listbox</h3>
         <h4>Examples</h4>
         <ul>
           <li><a href="examples/listbox/listbox-scrollable.html">Scrollable Listbox Example</a>: Single-select listbox that scrolls to reveal more options, similar to HTML <code>select</code> with <code>size</code> attribute greater than one.</li>
-          <li><a href="examples/listbox/listbox-collapsible.html">Collapsible Dropdown Listbox Example</a>: Single-select collapsible listbox that expands when activated, similar to HTML <code>select</code> withthe attribute <code>size=&quot;1&quot;</code>.</li>
+          <li><a href="examples/listbox/listbox-collapsible.html">Collapsible Dropdown Listbox Example</a>: Single-select collapsible listbox that expands when activated, similar to HTML <code>select</code> with the attribute <code>size=&quot;1&quot;</code>.</li>
           <li><a href="examples/listbox/listbox-rearrangeable.html">Example Listboxes with Rearrangeable Options</a>: Examples of both single-select and multi-select listboxes with accompanying toolbars where options can be added, moved, and removed.</li>
         </ul>
       </section>
diff --git a/examples/listbox/listbox-collapsible.html b/examples/listbox/listbox-collapsible.html
index b4406ba460..390c80ef3d 100644
--- a/examples/listbox/listbox-collapsible.html
+++ b/examples/listbox/listbox-collapsible.html
@@ -35,7 +35,7 @@ <h1>Collapsible Dropdown Listbox Example</h1>
   <p>
     The following example implementation of the
     <a href="../../#Listbox">design pattern for listbox</a>
-    demonstrates a collapsible single-select listbox widget that is functionally similar to an HTML <code>select</code> input withthe the attribute <code>size=&quot;1&quot;</code>.
+    demonstrates a collapsible single-select listbox widget that is functionally similar to an HTML <code>select</code> input with the the attribute <code>size=&quot;1&quot;</code>.
     The widget consists of a button that triggers the display of a listbox.
     In its default state, the widget is collapsed (the listbox is not visible)  and the button label shows the currently selected option from the listbox.
     When the button is activated, the listbox is displayed and the current option is focused and selected.
diff --git a/examples/listbox/listbox-rearrangeable.html b/examples/listbox/listbox-rearrangeable.html
index f1dcad4b51..0eb6da4f22 100644
--- a/examples/listbox/listbox-rearrangeable.html
+++ b/examples/listbox/listbox-rearrangeable.html
@@ -43,7 +43,7 @@ <h1>Example Listboxes with Rearrangeable Options</h1>
   <p>Similar examples include:</p>
   <ul>
     <li><a href="listbox-scrollable.html">Scrollable Listbox Example</a>: Single-select listbox that scrolls to reveal more options, similar to HTML <code>select</code> with <code>size</code> attribute greater than one.</li>
-    <li><a href="listbox-collapsible.html">Collapsible Dropdown Listbox Example</a>: Single-select collapsible listbox that expands when activated, similar to HTML <code>select</code> withthe attribute <code>size=&quot;1&quot;</code>.</li>
+    <li><a href="listbox-collapsible.html">Collapsible Dropdown Listbox Example</a>: Single-select collapsible listbox that expands when activated, similar to HTML <code>select</code> with the attribute <code>size=&quot;1&quot;</code>.</li>
   </ul>
   <section>
     <h2>Examples</h2>
diff --git a/examples/listbox/listbox-scrollable.html b/examples/listbox/listbox-scrollable.html
index a4657a89b4..fd2f96ac19 100644
--- a/examples/listbox/listbox-scrollable.html
+++ b/examples/listbox/listbox-scrollable.html
@@ -36,7 +36,7 @@ <h1>Scrollable Listbox Example</h1>
   <p>Similar examples include:</p>
   <ul>
     <li><a href="listbox-rearrangeable.html">Example Listboxes with Rearrangeable Options</a>: Examples of both single-select and multi-select listboxes with accompanying toolbars where options can be added, moved, and removed.</li>
-    <li><a href="listbox-collapsible.html">Collapsible Dropdown Listbox Example</a>: Single-select collapsible listbox that expands when activated, similar to HTML <code>select</code> withthe attribute <code>size=&quot;1&quot;</code>.</li>
+    <li><a href="listbox-collapsible.html">Collapsible Dropdown Listbox Example</a>: Single-select collapsible listbox that expands when activated, similar to HTML <code>select</code> with the attribute <code>size=&quot;1&quot;</code>.</li>
   </ul>
   <section>
     <h2 id="ex_label">Example</h2>