diff --git a/css/index.css b/css/index.css
index 3f43e6e..cf00b66 100644
--- a/css/index.css
+++ b/css/index.css
@@ -52,7 +52,7 @@ main :first-child {
   margin-top: 0;
 }
 header {
-  border-bottom: 1px dashed var(--lightgray);
+  border-bottom: 1px dashed var(--black);
 }
 header:after {
   content: "";