JAL-4059 minor CSS fix

diff --git a/utils/jalviewjs/site-resources/jalviewjs.html b/utils/jalviewjs/site-resources/jalviewjs.html
index e8d8cf8..13fd179 100644 (file)
--- a/utils/jalviewjs/site-resources/jalviewjs.html
+++ b/utils/jalviewjs/site-resources/jalviewjs.html
@@ -28,9 +28,11 @@ jv_Info = {
 <style>
 @keyframes rotation {
   from {
+    transform-origin: center;
     transform: rotate(0deg);
   }
   to {
+    transform-origin: center;
     transform: rotate(360deg);
   }
 }