diff --git a/dev/js/src/match/querycreator.js b/dev/js/src/match/querycreator.js
index 78a422b..d7c5edf 100644
--- a/dev/js/src/match/querycreator.js
+++ b/dev/js/src/match/querycreator.js
@@ -83,7 +83,7 @@
 
       // Initialize element
       this._element = document.createElement('p');
-      this._element.className = 'queryfragment';
+      this._element.classList.add('query','fragment');
 
       // Prepend info text
       this._element.addE('span').addT(loc.NEW_QUERY + ':');