diff --git a/src/themes/shared/_markdown.css b/src/themes/shared/_markdown.css
index b328c001e..83d1c075c 100644
--- a/src/themes/shared/_markdown.css
+++ b/src/themes/shared/_markdown.css
@@ -259,7 +259,7 @@
 
   h1,
   h2 {
-    margin-top: 2.5rem;
+    margin-top: calc(2.5rem - (1lh - 1.275em));
   }
 
   :is(h1, h2, h3, h4, h5, h6) + * {
@@ -275,12 +275,8 @@
   }
 
   h2 {
-    --_spacing: 0.5em;
-
-    margin-bottom: calc(
-      var(--_spacing) + (var(--heading-line-height) - var(--font-size-xxl))
-    );
-    padding-bottom: var(--_spacing);
+    margin-bottom: 0.65em;
+    padding-bottom: calc(0.5em - (1lh - 1.275em));
     border-bottom: 1px solid var(--border-color);
     font-size: var(--font-size-xxl);
   }
diff --git a/src/themes/shared/_vars.css b/src/themes/shared/_vars.css
index 72ed013e4..b1f0d7d86 100644
--- a/src/themes/shared/_vars.css
+++ b/src/themes/shared/_vars.css
@@ -115,7 +115,7 @@
   --form-element-color            : ;
   --heading-color                 : var(--strong-color);
   --heading-font-weight           : 600;
-  --heading-line-height           : calc(2ex + 5px); /* Unit required */
+  --heading-line-height           : normal;
   --kbd-bg                        : var(--color-mono-1);
   --kbd-border                    : 1px solid var(--color-mono-3);
   --kbd-border-radius             : 4px;