wrap .sticky-top in supports query

diff --git a/scss/utilities/_position.scss b/scss/utilities/_position.scss
index 2cf08bfa013d9a9bdd4c0a852ba2f380e68ccd78..74b8d39e7030a5aabd4651436fb3766dc3f757a7 100644 (file)
--- a/scss/utilities/_position.scss
+++ b/scss/utilities/_position.scss
@@ -17,7 +17,9 @@
 }
 
 .sticky-top {
-  position: sticky;
-  top: 0;
-  z-index: $zindex-sticky;
+  @supports (position: sticky) {
+    position: sticky;
+    top: 0;
+    z-index: $zindex-sticky;
+  }
 }