diff --git a/src/css/_partial/_post/_content.scss b/src/css/_partial/_post/_content.scss
index 9e48177..688a924 100644
--- a/src/css/_partial/_post/_content.scss
+++ b/src/css/_partial/_post/_content.scss
@@ -192,5 +192,6 @@
   .MJXc-display {
     overflow-x: auto;
     overflow-y: hidden;
+    padding-right: 1px;
   }
 }
diff --git a/src/css/_variables.scss b/src/css/_variables.scss
index 6a65623..135844b 100644
--- a/src/css/_variables.scss
+++ b/src/css/_variables.scss
@@ -190,7 +190,7 @@ $content-table-border-color: darken($deputy-color, 3%) !default;
 $code-color: #c7254e !default;
 
 // Font size of code.
-$code-font-size: 13px !default;
+$code-font-size: 0.9em !default;
 
 // Font family of the code.
 $code-font-family: Consolas, Monaco, Menlo, "DejaVu Sans Mono",