diff --git a/layout/_third-party/math/mathjax.swig b/layout/_third-party/math/mathjax.swig
index 1a7b3df136..1b12c88d7a 100644
--- a/layout/_third-party/math/mathjax.swig
+++ b/layout/_third-party/math/mathjax.swig
@@ -33,15 +33,19 @@
   MathJax.Hub.Queue(function() {
     var all = MathJax.Hub.getAllJax(), i;
     for (i = 0; i < all.length; i += 1) {
-      all[i].SourceElement().parentNode.className += ' has-jax';
+      document.getElementById(all[i].inputID + '-Frame').parentNode.className += ' has-jax';
     }
   });
 </script>
 <script src="{{ theme.math.mathjax.cdn }}"></script>
 
 <style>
-.MathJax_Display {
-  overflow-x: scroll;
+.has-jax {
+  overflow-x: auto;
   overflow-y: hidden;
 }
+
+li {
+  list-style-position: inside !important;
+}
 </style>