diff --git a/docs/modal.html b/docs/modal.html
index 3d689989..d98a8fd2 100644
--- a/docs/modal.html
+++ b/docs/modal.html
@@ -75,7 +75,7 @@
     <em>…</em>
   &lt;/<b>article</b>&gt;
 &lt;/<b>dialog</b>&gt;
-</code></pre><h2>Utilities</h2><p>Modals come with 3 utility classes.</p><p><code>.modal-is-open</code> prevents any scrolling and interactions below the modal.</p><pre><code><em>&lt;!doctype html&gt;</em>
+</code></pre><h2>Utilities</h2><p>Modals come with 3 utility classes. These classes are not available on the <a href="https://picocss.com/docs/classless.html">class-less version</a>.</p><p><code>.modal-is-open</code> prevents any scrolling and interactions below the modal.</p><pre><code><em>&lt;!doctype html&gt;</em>
 &lt;<b>html</b> <i>class</i>=<u>"modal-is-open"</u>&gt;
   <em>…</em>
 &lt;/<b>html</b>&gt;</code></pre><p><code>.modal-is-opening</code> brings an opening animation.</p><pre><code><em>&lt;!doctype html&gt;</em>
diff --git a/docs/src/modal.html b/docs/src/modal.html
index 427716ef..79b05a8c 100644
--- a/docs/src/modal.html
+++ b/docs/src/modal.html
@@ -161,7 +161,7 @@
 
           <h2>Utilities</h2>
 
-          <p>Modals come with 3 utility classes.</p>
+          <p>Modals come with 3 utility classes. These classes are not available on the <a href="https://picocss.com/docs/classless.html">class-less version</a>.</p>
 
           <p><code>.modal-is-open</code> prevents any scrolling and interactions below the modal.</p>