diff --git a/docs/stylesheets/extra.css b/docs/stylesheets/extra.css
index 8abe96ceb33389ffa3bd7a34d5d760ff4b91ec1f..b14cbd54f840928e8e6230a8cc23d27fbaa4495a 100644
--- a/docs/stylesheets/extra.css
+++ b/docs/stylesheets/extra.css
@@ -8,14 +8,14 @@
   src: "./assets/HelveticaNeue.ttc";
 }
 
-body { font-size: 12px; font-weight: regular; }
+body { font-size: 12px; font-weight: thin; }
 
-h1 { font-size: 48px; font-weight: bold; }
-h2 { font-size: 36px; font-weight: bold; }
-h3 { font-size: 32px; font-weight: bold; }
-h4 { font-size: 28px; font-weight: bold; }
-h5 { font-size: 24px; font-weight: bold; }
-h6 { font-size: 18px; font-weight: bold; }
+h1 { font-size: 48px; font-weight: 700;; }
+h2 { font-size: 36px; font-weight: 600; }
+h3 { font-size: 32px; font-weight: 500; }
+h4 { font-size: 28px; font-weight: 400;; }
+h5 { font-size: 24px; font-weight: 400; }
+h6 { font-size: 18px; }
 
 
 // regular