diff --git a/themes/tiddlywiki/vanilla/base.tid b/themes/tiddlywiki/vanilla/base.tid
index 9cb5f3858..4639f3000 100644
--- a/themes/tiddlywiki/vanilla/base.tid
+++ b/themes/tiddlywiki/vanilla/base.tid
@@ -229,12 +229,7 @@ a.tc-tiddlylink-external:hover {
 .tc-dropzone.tc-dragover:before {
 	z-index: 10000;
 	display: block;
-	position: absolute;
-	position: -webkit-sticky;
-	position: -moz-sticky;
-	position: -o-sticky;
-	position: -ms-sticky;
-	position: sticky;
+	position: fixed;
 	top: 0;
 	left: 0;
 	right: 0;