diff --git a/themes/vanilla/assets/scss/style.scss b/themes/vanilla/assets/scss/style.scss
index ece9aa3..a31a5b4 100755
--- a/themes/vanilla/assets/scss/style.scss
+++ b/themes/vanilla/assets/scss/style.scss
@@ -152,4 +152,5 @@ td {
 
 .katex-html {
     white-space: nowrap;
+    overflow-x: auto;
 }