diff --git a/resources/celerity/map.php b/resources/celerity/map.php
--- a/resources/celerity/map.php
+++ b/resources/celerity/map.php
@@ -11,7 +11,7 @@
     'conpherence.pkg.js' => '020aebcf',
     'core.pkg.css' => 'e3c1a8f2',
     'core.pkg.js' => '2cda17a4',
-    'differential.pkg.css' => '97e13037',
+    'differential.pkg.css' => 'ab23bd75',
     'differential.pkg.js' => '67e02996',
     'diffusion.pkg.css' => '42c75c37',
     'diffusion.pkg.js' => '91192d85',
@@ -61,7 +61,7 @@
     'rsrc/css/application/dashboard/dashboard.css' => '4267d6c6',
     'rsrc/css/application/diff/inline-comment-summary.css' => '81eb368d',
     'rsrc/css/application/differential/add-comment.css' => '7e5900d9',
-    'rsrc/css/application/differential/changeset-view.css' => 'de570228',
+    'rsrc/css/application/differential/changeset-view.css' => 'd92bed0d',
     'rsrc/css/application/differential/core.css' => '7300a73e',
     'rsrc/css/application/differential/phui-inline-comment.css' => '48acce5b',
     'rsrc/css/application/differential/revision-comment.css' => '7dbc8d1d',
@@ -540,7 +540,7 @@
     'conpherence-thread-manager' => 'aec8e38c',
     'conpherence-transaction-css' => '3a3f5e7e',
     'd3' => 'd67475f5',
-    'differential-changeset-view-css' => 'de570228',
+    'differential-changeset-view-css' => 'd92bed0d',
     'differential-core-view-css' => '7300a73e',
     'differential-revision-add-comment-css' => '7e5900d9',
     'differential-revision-comment-css' => '7dbc8d1d',
@@ -1997,6 +1997,9 @@
       'javelin-util',
       'phabricator-shaped-request',
     ),
+    'd92bed0d' => array(
+      'phui-inline-comment-view-css',
+    ),
     'da15d3dc' => array(
       'phui-oi-list-view-css',
     ),
@@ -2005,9 +2008,6 @@
       'javelin-uri',
       'phabricator-notification',
     ),
-    'de570228' => array(
-      'phui-inline-comment-view-css',
-    ),
     'dfa1d313' => array(
       'javelin-behavior',
       'javelin-dom',
diff --git a/src/applications/differential/render/DifferentialChangesetTwoUpRenderer.php b/src/applications/differential/render/DifferentialChangesetTwoUpRenderer.php
--- a/src/applications/differential/render/DifferentialChangesetTwoUpRenderer.php
+++ b/src/applications/differential/render/DifferentialChangesetTwoUpRenderer.php
@@ -223,7 +223,7 @@
             ($new_lines[$ii]['type'] == '\\');
 
           if ($not_copied) {
-            $n_copy = phutil_tag('td', array('class' => "copy {$n_class}"));
+            $n_copy = phutil_tag('td', array('class' => 'copy'));
           } else {
             list($orig_file, $orig_line, $orig_type) = $copy_lines[$n_num];
             $title = ($orig_type == '-' ? 'Moved' : 'Copied').' from ';
@@ -243,8 +243,7 @@
                   'msg' => $title,
                 ),
                 'class' => 'copy '.$class,
-              ),
-              '');
+              ));
           }
         }
       }
diff --git a/src/infrastructure/diff/view/PHUIDiffOneUpInlineCommentRowScaffold.php b/src/infrastructure/diff/view/PHUIDiffOneUpInlineCommentRowScaffold.php
--- a/src/infrastructure/diff/view/PHUIDiffOneUpInlineCommentRowScaffold.php
+++ b/src/infrastructure/diff/view/PHUIDiffOneUpInlineCommentRowScaffold.php
@@ -18,7 +18,6 @@
 
     $attrs = array(
       'colspan' => 3,
-      'class' => 'right3',
       'id' => $inline->getScaffoldCellID(),
     );
 
diff --git a/src/infrastructure/diff/view/PHUIDiffTwoUpInlineCommentRowScaffold.php b/src/infrastructure/diff/view/PHUIDiffTwoUpInlineCommentRowScaffold.php
--- a/src/infrastructure/diff/view/PHUIDiffTwoUpInlineCommentRowScaffold.php
+++ b/src/infrastructure/diff/view/PHUIDiffTwoUpInlineCommentRowScaffold.php
@@ -65,8 +65,7 @@
     );
 
     $right_attrs = array(
-      'colspan' => 3,
-      'class' => 'right3',
+      'colspan' => 2,
       'id' => ($right_side ? $right_side->getScaffoldCellID() : null),
     );
 
@@ -74,6 +73,7 @@
       phutil_tag('td', array('class' => 'n'), $left_hidden),
       phutil_tag('td', $left_attrs, $left_side),
       phutil_tag('td', array('class' => 'n'), $right_hidden),
+      phutil_tag('td', array('class' => 'copy')),
       phutil_tag('td', $right_attrs, $right_side),
     );
 
diff --git a/webroot/rsrc/css/application/differential/changeset-view.css b/webroot/rsrc/css/application/differential/changeset-view.css
--- a/webroot/rsrc/css/application/differential/changeset-view.css
+++ b/webroot/rsrc/css/application/differential/changeset-view.css
@@ -144,6 +144,7 @@
   min-width: 0.5%;
   width: 0.5%;
   padding: 0;
+  background: {$lightbluebackground};
 }
 
 .differential-diff td.new-copy,
@@ -178,6 +179,10 @@
   overflow: hidden;
 }
 
+.differential-diff td + td.n {
+  border-left: 1px solid {$thinblueborder};
+}
+
 .differential-diff td.n::before {
   content: attr(data-n);
 }
@@ -443,10 +448,6 @@
   -ms-user-select: none;
   -webkit-user-select: none;
   user-select: none;
-}
-
-.differential-diff.copy-l > tbody > tr > td,
-.differential-diff.copy-r > tbody > tr > td {
   opacity: 0.5;
 }
 
@@ -463,7 +464,7 @@
   -ms-user-select: none;
   -webkit-user-select: none;
   user-select: none;
-  opacity: 0.25;
+  opacity: 0.5;
 }
 
 .differential-diff.copy-r > tbody > tr > td:nth-child(5) {
@@ -473,3 +474,12 @@
   user-select: auto;
   opacity: 1;
 }
+
+.differential-diff.copy-l > tbody > tr.inline > td,
+.differential-diff.copy-r > tbody > tr.inline > td {
+  -moz-user-select: none;
+  -ms-user-select: none;
+  -webkit-user-select: none;
+  user-select: none;
+  opacity: 0.5;
+}