diff --git a/resources/celerity/map.php b/resources/celerity/map.php
--- a/resources/celerity/map.php
+++ b/resources/celerity/map.php
@@ -48,7 +48,7 @@
     'rsrc/css/application/config/unhandled-exception.css' => '4c96257a',
     'rsrc/css/application/conpherence/durable-column.css' => '86396117',
     'rsrc/css/application/conpherence/menu.css' => 'f99fee4c',
-    'rsrc/css/application/conpherence/message-pane.css' => '2c16d204',
+    'rsrc/css/application/conpherence/message-pane.css' => 'dd4f8a3b',
     'rsrc/css/application/conpherence/notification.css' => '6cdcc253',
     'rsrc/css/application/conpherence/transaction.css' => '85d0974c',
     'rsrc/css/application/conpherence/update.css' => 'faf6be09',
@@ -514,7 +514,7 @@
     'config-welcome-css' => '6abd79be',
     'conpherence-durable-column-view' => '86396117',
     'conpherence-menu-css' => 'f99fee4c',
-    'conpherence-message-pane-css' => '2c16d204',
+    'conpherence-message-pane-css' => 'dd4f8a3b',
     'conpherence-notification-css' => '6cdcc253',
     'conpherence-thread-manager' => '01774ab2',
     'conpherence-transaction-css' => '85d0974c',
diff --git a/webroot/rsrc/css/application/conpherence/message-pane.css b/webroot/rsrc/css/application/conpherence/message-pane.css
--- a/webroot/rsrc/css/application/conpherence/message-pane.css
+++ b/webroot/rsrc/css/application/conpherence/message-pane.css
@@ -344,3 +344,7 @@
   height: 24px;
   width: 100%;
 }
+
+.conpherence-message .phabricator-remarkup .remarkup-code-block pre {
+  max-height: 200px;
+}