diff --git a/resources/celerity/map.php b/resources/celerity/map.php
--- a/resources/celerity/map.php
+++ b/resources/celerity/map.php
@@ -7,7 +7,7 @@
  */
 return array(
   'names' => array(
-    'core.pkg.css' => 'a2cf2f6c',
+    'core.pkg.css' => '5eabac59',
     'core.pkg.js' => '47dc9ebb',
     'darkconsole.pkg.js' => 'e7393ebb',
     'differential.pkg.css' => '2de124c9',
@@ -104,7 +104,7 @@
     'rsrc/css/application/tokens/tokens.css' => '3d0f239e',
     'rsrc/css/application/uiexample/example.css' => '528b19de',
     'rsrc/css/core/core.css' => 'a76cefc9',
-    'rsrc/css/core/remarkup.css' => '1c4ac273',
+    'rsrc/css/core/remarkup.css' => 'e27a26b2',
     'rsrc/css/core/syntax.css' => '9fd11da8',
     'rsrc/css/core/z-index.css' => '57ddcaa2',
     'rsrc/css/diviner/diviner-shared.css' => '5a337049',
@@ -115,7 +115,7 @@
     'rsrc/css/layout/phabricator-filetree-view.css' => 'fccf9f82',
     'rsrc/css/layout/phabricator-hovercard-view.css' => '1239cd52',
     'rsrc/css/layout/phabricator-side-menu-view.css' => 'bec2458e',
-    'rsrc/css/layout/phabricator-source-code-view.css' => '5e0178de',
+    'rsrc/css/layout/phabricator-source-code-view.css' => 'cbeef983',
     'rsrc/css/phui/calendar/phui-calendar-day.css' => 'd1cf6f93',
     'rsrc/css/phui/calendar/phui-calendar-list.css' => 'c1c7f338',
     'rsrc/css/phui/calendar/phui-calendar-month.css' => '476be7e0',
@@ -733,12 +733,12 @@
     'phabricator-object-selector-css' => '85ee8ce6',
     'phabricator-phtize' => 'd254d646',
     'phabricator-prefab' => '6920d200',
-    'phabricator-remarkup-css' => '1c4ac273',
+    'phabricator-remarkup-css' => 'e27a26b2',
     'phabricator-search-results-css' => '7dea472c',
     'phabricator-shaped-request' => '7cbe244b',
     'phabricator-side-menu-view-css' => 'bec2458e',
     'phabricator-slowvote-css' => '475b4bd2',
-    'phabricator-source-code-view-css' => '5e0178de',
+    'phabricator-source-code-view-css' => 'cbeef983',
     'phabricator-standard-page-view' => '1f53d056',
     'phabricator-textareautils' => '5c93c52c',
     'phabricator-title' => 'df5e11d2',
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
@@ -39,12 +39,12 @@
 }
 
 .phabricator-remarkup .remarkup-code-block pre {
-  background: {$sh-yellowbackground};
+  background: #FFFEF5;
   border: 1px solid {$sh-lightyellowborder};
   display: block;
-  color: #000000;
+  color: #000;
   overflow: auto;
-  padding: 12px 8px;
+  padding: 8px;
 }
 
 .phabricator-remarkup pre.remarkup-counterexample {
diff --git a/webroot/rsrc/css/layout/phabricator-source-code-view.css b/webroot/rsrc/css/layout/phabricator-source-code-view.css
--- a/webroot/rsrc/css/layout/phabricator-source-code-view.css
+++ b/webroot/rsrc/css/layout/phabricator-source-code-view.css
@@ -3,12 +3,11 @@
  */
 
 .phabricator-source-code-container {
-  background: #fff;
   overflow-x: auto;
   overflow-y: hidden;
   border: 1px solid {$sh-lightyellowborder};
   border-radius: 3px;
-  background-color: #FCFBF7;
+  background-color: #FFFEF5;
 }
 
 .phui-object-item .phabricator-source-code-container {
@@ -44,6 +43,7 @@
   -webkit-user-select: none;
   -ms-user-select: none;
   user-select: none;
+  white-space: nowrap;
 }
 
 th.phabricator-source-line a {