diff --git a/theme-ghdark.css b/theme-ghdark.css
index 8975fac..bf5bf2d 100644
--- a/theme-ghdark.css
+++ b/theme-ghdark.css
@@ -677,4 +677,8 @@ pre.code-block {
   color: var(--color-caret) !important;
 }
 
+.markup code {
+  background-color: #282828
+}
+
 @import url("/assets/css/index.css");
\ No newline at end of file