diff --git a/resources/celerity/map.php b/resources/celerity/map.php
--- a/resources/celerity/map.php
+++ b/resources/celerity/map.php
@@ -9,7 +9,7 @@
   'names' => array(
     'conpherence.pkg.css' => '2f25eb4f',
     'conpherence.pkg.js' => '020aebcf',
-    'core.pkg.css' => '4e0e22fb',
+    'core.pkg.css' => 'e1d9d0e0',
     'core.pkg.js' => '2eeda9e0',
     'dark-console.pkg.js' => '187792c2',
     'differential.pkg.css' => '2431def2',
@@ -109,7 +109,7 @@
     'rsrc/css/application/tokens/tokens.css' => 'ce5a50bd',
     'rsrc/css/application/uiexample/example.css' => 'b4795059',
     'rsrc/css/core/core.css' => 'b3a5928e',
-    'rsrc/css/core/remarkup.css' => 'b251d2e7',
+    'rsrc/css/core/remarkup.css' => 'd9fa3739',
     'rsrc/css/core/syntax.css' => '548567f6',
     'rsrc/css/core/z-index.css' => 'ac3bfcd4',
     'rsrc/css/diviner/diviner-shared.css' => '4bd263b0',
@@ -798,7 +798,7 @@
     'phabricator-object-selector-css' => 'ee77366f',
     'phabricator-phtize' => '2f1db1ed',
     'phabricator-prefab' => '5793d835',
-    'phabricator-remarkup-css' => 'b251d2e7',
+    'phabricator-remarkup-css' => 'd9fa3739',
     'phabricator-remarkup-metadata' => 'e40c4991',
     'phabricator-search-results-css' => '9ea70ace',
     'phabricator-shaped-request' => '995f5102',
diff --git a/webroot/rsrc/css/core/remarkup.css b/webroot/rsrc/css/core/remarkup.css
--- a/webroot/rsrc/css/core/remarkup.css
+++ b/webroot/rsrc/css/core/remarkup.css
@@ -174,29 +174,29 @@
   list-style-type: none;
 }
 
+.phabricator-remarkup .remarkup-header {
+  line-height: 1.4;
+  margin: 1em 0 0.75em;
+}
+
 .phabricator-remarkup h2.remarkup-header {
   font-size: 28px;
-  margin: 1em 0 0.75em;
 }
 
 .phabricator-remarkup h3.remarkup-header {
   font-size: 24px;
-  margin: 1em 0 0.75em;
 }
 
 .phabricator-remarkup h4.remarkup-header {
   font-size: 22px;
-  margin: 1em 0 0.75em;
 }
 
 .phabricator-remarkup h5.remarkup-header {
   font-size: 18px;
-  margin: 1em 0 0.75em;
 }
 
 .phabricator-remarkup h6.remarkup-header {
   font-size: 16px;
-  margin: 1em 0 0.75em;
 }
 
 .phabricator-remarkup blockquote {