diff --git a/public_html/css/hpr.css b/public_html/css/hpr.css
index 393563d..b6028fd 100644
--- a/public_html/css/hpr.css
+++ b/public_html/css/hpr.css
@@ -53,6 +53,13 @@ https://creativecommons.org/publicdomain/
     --for-tablet-landscape-up: 900px;
 	--for-desktop-up: 1200px;
     --for-big-desktop-up: 1800px; 
+
+	--default-header-x-font-weight: bold;
+	--default-header-x-margin: 1.25rem 0 0.75rem 0;
+	--default-header-1-font-size: 1.5rem;
+	--default-header-2-font-size: 1.45rem;
+	--default-header-3-font-size: 1.25rem;
+	--default-header-4-font-size: 1.15rem;
 }
 
 html {
@@ -172,27 +179,27 @@ blockquote {
 }
 
 h1 {
-	font-size: 1.5rem;
-	margin: 1.25rem 0 0.75rem 0;
+	font-size: var(--default-header-1-font-size);
+	margin: var(--default-header-x-margin);
 }
 
 h2,
 article * h1,
 section > header:first-child {
-	font-size: 1.45rem;
-	margin: 1.25rem 0 0.75rem 0;
+	font-size: var(--default-header-2-font-size);
+	margin: var(--default-header-x-margin);
 }
 
 h3,
 article * h2 {
-	font-size: 1.25rem;
-	margin: 1.25rem 0 0.75rem 0;
+	font-size: var(--default-header-3-font-size);
+	margin: var(--default-header-x-margin);
 }
 
 h4,
 article * h3 {
-	font-size: 1.15rem;
-	margin: 1.25rem 0 0.75rem 0;
+	font-size: var(--default-header-4-font-size);
+	margin: var(--default-header-x-margin);
 }
 
 img {