diff --git a/resources/celerity/map.php b/resources/celerity/map.php
--- a/resources/celerity/map.php
+++ b/resources/celerity/map.php
@@ -73,7 +73,7 @@
     'rsrc/css/application/diffusion/diffusion-icons.css' => '23b31a1b',
     'rsrc/css/application/diffusion/diffusion-readme.css' => 'b68a76e4',
     'rsrc/css/application/diffusion/diffusion-repository.css' => 'b89e8c6c',
-    'rsrc/css/application/diffusion/diffusion.css' => 'db8bbf58',
+    'rsrc/css/application/diffusion/diffusion.css' => 'e46232d6',
     'rsrc/css/application/feed/feed.css' => 'd8b6e3f8',
     'rsrc/css/application/files/global-drag-and-drop.css' => '1d2713a4',
     'rsrc/css/application/flag/flag.css' => '2b77be8d',
@@ -567,7 +567,7 @@
     'differential-revision-history-css' => '8aa3eac5',
     'differential-revision-list-css' => '93d2df7d',
     'differential-table-of-contents-css' => 'bba788b9',
-    'diffusion-css' => 'db8bbf58',
+    'diffusion-css' => 'e46232d6',
     'diffusion-icons-css' => '23b31a1b',
     'diffusion-readme-css' => 'b68a76e4',
     'diffusion-repository-css' => 'b89e8c6c',
diff --git a/src/applications/diffusion/view/DiffusionCommitGraphView.php b/src/applications/diffusion/view/DiffusionCommitGraphView.php
--- a/src/applications/diffusion/view/DiffusionCommitGraphView.php
+++ b/src/applications/diffusion/view/DiffusionCommitGraphView.php
@@ -164,29 +164,22 @@
       $item_date = phabricator_date($item_epoch, $viewer);
       if ($item_date !== $last_date) {
         $last_date = $item_date;
-        $date_view = phutil_tag(
-          'div',
-          array(
-            'class' => 'diffusion-commit-graph-date-header',
-          ),
-          $item_date);
+        $header = $item_date;
       } else {
-        $date_view = null;
+        $header = null;
       }
 
-      $item_view = idx($views, $hash);
-      if ($item_view) {
-        $list_view = id(new PHUIObjectItemListView())
-          ->setFlush(true)
-          ->addItem($item_view);
-      } else {
-        $list_view = null;
+      $item_view = $views[$hash];
+
+      $list_view = id(new PHUIObjectItemListView())
+        ->setFlush(true)
+        ->addItem($item_view);
+
+      if ($header !== null) {
+        $list_view->setHeader($header);
       }
 
-      $rows[] = array(
-        $date_view,
-        $list_view,
-      );
+      $rows[] = $list_view;
     }
 
     return $rows;
diff --git a/webroot/rsrc/css/application/diffusion/diffusion.css b/webroot/rsrc/css/application/diffusion/diffusion.css
--- a/webroot/rsrc/css/application/diffusion/diffusion.css
+++ b/webroot/rsrc/css/application/diffusion/diffusion.css
@@ -102,10 +102,6 @@
   color: {$darkbluetext};
 }
 
-.diffusion-history-list .diffusion-differential-tag {
-  margin-left: 4px;
-}
-
 /* - Branch Styles  ----------------------------------------------------------*/
 
 .diffusion-branch-list .phui-oi-attribute a {
@@ -238,8 +234,9 @@
   display: block;
 }
 
-.diffusion-commit-graph-date-header {
+.diffusion-commit-graph-table .phui-oi-list-header {
   color: {$darkgreytext};
   font-weight: bold;
-  padding: 4px 0;
+  padding: 4px 4px;
+  font-size: {$normalfontsize};
 }