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' => '79a197f6',
     'conpherence.pkg.js' => '020aebcf',
-    'core.pkg.css' => '42c4119d',
+    'core.pkg.css' => '25d10519',
     'core.pkg.js' => '086da722',
     'dark-console.pkg.js' => '187792c2',
     'differential.pkg.css' => '91ac6214',
@@ -107,7 +107,7 @@
     'rsrc/css/application/tokens/tokens.css' => 'ce5a50bd',
     'rsrc/css/application/uiexample/example.css' => '549e220b',
     'rsrc/css/core/core.css' => '83d97073',
-    'rsrc/css/core/remarkup.css' => '03b6c819',
+    'rsrc/css/core/remarkup.css' => '6d31bfe9',
     'rsrc/css/core/syntax.css' => '548567f6',
     'rsrc/css/core/z-index.css' => 'ac3bfcd4',
     'rsrc/css/diviner/diviner-shared.css' => '4bd263b0',
@@ -793,7 +793,7 @@
     'phabricator-object-selector-css' => 'ee77366f',
     'phabricator-phtize' => '2f1db1ed',
     'phabricator-prefab' => '5793d835',
-    'phabricator-remarkup-css' => '03b6c819',
+    'phabricator-remarkup-css' => '6d31bfe9',
     '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
@@ -241,11 +241,6 @@
   color: {$darkbluetext};
 }
 
-.phabricator-remarkup img.remarkup-proxy-image {
-  max-width: 640px;
-  max-height: 640px;
-}
-
 .phabricator-remarkup audio {
   display: block;
   margin: 16px auto;
@@ -263,18 +258,7 @@
   max-width: 95%;
 }
 
-.phabricator-remarkup-mention-exists {
-  font-weight: bold;
-  background: #e6f3ff;
-}
-
-.phabricator-remarkup-mention-disabled {
-  font-weight: bold;
-  background: #dddddd;
-}
-
-.phui-remarkup-preview .phabricator-remarkup-mention-unknown,
-.aphront-panel-preview .phabricator-remarkup-mention-unknown {
+.phui-remarkup-preview .phabricator-remarkup-mention-unknown {
   font-weight: bold;
   background: #ffaaaa;
 }
@@ -324,43 +308,6 @@
   color: {$darkbluetext};
 }
 
-.phabricator-remarkup-toc {
-  float: right;
-  border-left: 1px solid {$lightblueborder};
-  background: {$page.content};
-  width: 160px;
-  padding-left: 8px;
-  margin: 0 0 4px 8px;
-}
-
-.phabricator-remarkup-toc-header {
-  font-size: 13px;
-  line-height: 13px;
-  color: {$darkbluetext};
-  font-weight: bold;
-  margin-bottom: 4px;
-}
-
-.phabricator-remarkup-toc ul {
-  padding: 0;
-  margin: 0;
-  list-style: none;
-  overflow: hidden;
-}
-
-.phabricator-remarkup-toc ul ul {
-  margin: 0 0 0 8px;
-}
-
-.phabricator-remarkup-toc ul li {
-  padding: 0;
-  margin: 0;
-  font-size: 12px;
-  overflow: hidden;
-  text-overflow: ellipsis;
-  white-space: nowrap;
-}
-
 .phabricator-remarkup-embed-layout-right {
   text-align: right;
 }
@@ -529,12 +476,6 @@
   overflow-wrap: anywhere;
 }
 
-body div.phabricator-remarkup.remarkup-has-toc
-  .phabricator-remarkup-toc + .remarkup-header {
-  margin-top: 0;
-  padding-top: 0;
-}
-
 body .phabricator-standard-page div.phabricator-remarkup *:first-child,
 body .phabricator-standard-page div.phabricator-remarkup .remarkup-header + * {
   margin-top: 0;