diff --git a/_sass/_base.scss b/_sass/_base.scss
index 13a55d1..614a443 100644
--- a/_sass/_base.scss
+++ b/_sass/_base.scss
@@ -1489,3 +1489,7 @@ figure.cover {
     color: #23212d !important;
   }
 }
+
+mjx-container[jax="CHTML"][display="true"] {
+  overflow-x: auto;
+}