diff --git a/src/css/custom.css b/src/css/custom.css
index 2fa0ed3..9404af4 100644
--- a/src/css/custom.css
+++ b/src/css/custom.css
@@ -33,7 +33,7 @@ html[data-theme='dark'] .docusaurus-highlight-code-line {
     text-align: center;
     padding: 20px 0;
     font-weight: 900;
-    font-size: 32;
+    font-size: 32px;
     position: relative;
     width: 100%;
 }