diff --git a/_config.scss b/_config.scss
index a6b0a22..6b515b8 100644
--- a/_config.scss
+++ b/_config.scss
@@ -46,10 +46,10 @@ $basic_line: 1;
 //   ),
 // );
 
-// $head_size_1: 3.1em;
-// $head_size_2: 2.5em;
-// $head_size_3: 1.8em;
-// $head_size_4: 1.35em;
+$head_size_1: 3.1em;
+$head_size_2: 2.5em;
+$head_size_3: 1.8em;
+$head_size_4: 1.35em;
 
 $text_size_1: 1em;
 $text_size_2: 20;