diff --git a/assets/styles/millironx.css b/assets/styles/millironx.css
index 2940615..5af638d 100644
--- a/assets/styles/millironx.css
+++ b/assets/styles/millironx.css
@@ -387,7 +387,7 @@ footer {
   }
 } /* end @media */
 
-@supports (animation-timeline: scroll()) and (animation-range) {
+@supports (animation-timeline: scroll()) and (animation-range: 0 50vh) {
   @keyframes sticky-header {
     from {
       height: 50vh;