diff --git a/assets/css/main.css b/assets/css/main.css
index 0c76ba4..723b007 100644
--- a/assets/css/main.css
+++ b/assets/css/main.css
@@ -252,6 +252,7 @@ div.highlight pre {
     border: none;
     display: grid;
     margin: 0px;
+    overflow: auto; /* Have to add this line, otherwise the "pre" and "code" will have different width */
     /* padding-left: 10px; */
     /* padding-right: 10px; */
     /* padding-top: 10px; */