diff --git a/css-fundamentals/index.html b/css-fundamentals/index.html
index 2e86006..f592ed8 100644
--- a/css-fundamentals/index.html
+++ b/css-fundamentals/index.html
@@ -185,6 +185,12 @@ <h2>CSS Units Learning Resources</h2>
                             >
                             <span title="Read">📕</span>
                         </li>
+                        <li>
+                            <a href="https://lyty.dev/css/css-unit.html" target="_blank"
+                                >More about CSS units and values</a
+                            >
+                            <span title="Read">📕</span>
+                        </li>
                         <li>
                             <a href="https://gist.github.com/basham/2175a16ab7c60ce8e001" target="_blank">CSS units</a>
                             <span title="Read">📕</span>