diff --git a/core/modules/dashboard/dashboard-rtl.admin.css b/core/modules/dashboard/dashboard-rtl.admin.css
new file mode 100644
index 0000000..220d8e7
--- /dev/null
+++ b/core/modules/dashboard/dashboard-rtl.admin.css
@@ -0,0 +1,15 @@
+/**
+ * @file
+ * Right-to-left specific stylesheet for the Dashboard module.
+ */
+
+#dashboard .disabled-blocks .block, #dashboard .block-placeholder {
+  margin: 3px 0 3px 3px;
+  padding: 6px 8px 6px 4px;
+}
+#dashboard .canvas-content a.button {
+  margin: 0 10px 0 0;
+}
+#dashboard .ui-sortable .block h2 {
+  padding: 0 19px;
+}
diff --git a/core/modules/dashboard/dashboard-rtl.base.css b/core/modules/dashboard/dashboard-rtl.base.css
new file mode 100644
index 0000000..17eb733
--- /dev/null
+++ b/core/modules/dashboard/dashboard-rtl.base.css
@@ -0,0 +1,24 @@
+/**
+ * @file
+ * Right-to-left specific stylesheet for the Dashboard module.
+ */
+
+#dashboard .dashboard-region {
+  float: right;
+}
+#dashboard .disabled-blocks .block, #dashboard .block-placeholder {
+  float: right;
+}
+#dashboard .ui-sortable .block h2 {
+  background-position: right -39px;
+}
+#dashboard.customize-inactive .disabled-blocks .block:hover h2 {
+  background-position: right -39px;
+}
+#dashboard.customize-inactive .dashboard-region .ui-sortable .block:hover h2 {
+  background-position: right -36px;
+}
+#dashboard #dashboard_main {
+  margin-left: 1%;
+  margin-right: 0;
+}
diff --git a/core/modules/dashboard/dashboard-rtl.css b/core/modules/dashboard/dashboard-rtl.css
deleted file mode 100644
index 8d3d0ed..0000000
--- a/core/modules/dashboard/dashboard-rtl.css
+++ /dev/null
@@ -1,30 +0,0 @@
-/**
- * @file
- * Right-to-left specific stylesheet for the Dashboard module.
- */
-
-#dashboard div.dashboard-region {
-  float: right;
-}
-#dashboard #disabled-blocks .block, #dashboard .block-placeholder {
-  float: right;
-  margin: 3px 0 3px 3px;
-  padding: 6px 8px 6px 4px;
-}
-#dashboard .canvas-content a.button {
-  margin: 0 10px 0 0;
-}
-#dashboard .ui-sortable .block h2 {
-  background-position: right -39px;
-  padding: 0 19px;
-}
-#dashboard.customize-inactive #disabled-blocks .block:hover h2 {
-  background-position: right -39px;
-}
-#dashboard.customize-inactive .dashboard-region .ui-sortable .block:hover h2 {
-  background-position: right -36px;
-}
-#dashboard div#dashboard_main {
-  margin-left: 1%;
-  margin-right: 0;
-}
diff --git a/core/modules/dashboard/dashboard.admin.css b/core/modules/dashboard/dashboard.admin.css
new file mode 100644
index 0000000..3438430
--- /dev/null
+++ b/core/modules/dashboard/dashboard.admin.css
@@ -0,0 +1,83 @@
+/**
+ * @file
+ * Stylesheet for the Dashboard module.
+ */
+
+#dashboard #dashboard_main {
+  width: 65%;
+}
+#dashboard #dashboard_sidebar {
+  width: 33%;
+}
+#dashboard .block {
+  margin-bottom: 20px;
+}
+#dashboard .dashboard-region .block-placeholder {
+  display: block;
+  height: 1.6em;
+  margin: 0 0 20px 0;
+  padding: 0;
+  width: 100%;
+}
+#dashboard .disabled-blocks .block,
+#dashboard .block-placeholder {
+  background: #E2E1DC;
+  -moz-border-radius: 4px;
+  border-radius: 4px;
+}
+#dashboard .dashboard-add-other-blocks {
+  margin: 10px 0 0 0;
+}
+#dashboard .ui-sortable {
+  border: 2px dashed #CCC;
+  padding: 10px;
+}
+#dashboard .canvas-content {
+  padding: 10px;
+}
+#dashboard .canvas-content a.button {
+  color: #5A5A5A;
+  text-decoration: none;
+}
+#dashboard .region {
+  margin: 5px;
+}
+#dashboard .disabled-blocks {
+  padding: 5px 0;
+}
+#dashboard .disabled-blocks .ui-sortable {
+  background-color: #777;
+  border: 0;
+  padding: 0;
+}
+#dashboard .disabled-blocks .region {
+  background-color: #E0E0D8;
+  border: #CCC 1px solid;
+  padding: 10px;
+}
+#dashboard .disabled-blocks h2 {
+  font-weight: normal;
+}
+#dashboard .disabled-blocks .block {
+  background: #444;
+  color: #FFF;
+}
+#dashboard.customize-inactive .disabled-blocks .block:hover {
+  background: #0074BD;
+}
+#dashboard .disabled-blocks .block-placeholder {
+  height: 1.6em;
+  width: 30px;
+}
+#dashboard .ui-sortable .block h2 {
+  background: transparent url(../../misc/draggable.png) no-repeat 0 -39px;
+  padding: 0 17px;
+}
+#dashboard.customize-inactive .disabled-blocks .block:hover h2 {
+  background: #0074BD url(../../misc/draggable.png) no-repeat 0 -39px;
+  color: #FFF;
+}
+#dashboard.customize-inactive .dashboard-region .ui-sortable .block:hover h2 {
+  background: #0074BD url(../../misc/draggable.png) no-repeat 3px -36px;
+  color: #FFF;
+}
diff --git a/core/modules/dashboard/dashboard.base.css b/core/modules/dashboard/dashboard.base.css
new file mode 100644
index 0000000..345cb5e
--- /dev/null
+++ b/core/modules/dashboard/dashboard.base.css
@@ -0,0 +1,39 @@
+/**
+ * @file
+ * Stylesheet for the Dashboard module.
+ */
+
+#dashboard .dashboard-region {
+  float: left;
+  min-height: 1px;
+}
+#dashboard #dashboard_main {
+  margin-right: 1%; /* LTR */
+}
+#dashboard .dashboard-region .block {
+  clear: both;
+}
+#dashboard .block h2 {
+  float: none;
+}
+#dashboard .disabled-blocks .block,
+#dashboard .block-placeholder {
+  float: left; /* LTR */
+  margin: 3px 3px 3px 0; /* LTR */
+  padding: 6px 4px 6px 8px; /* LTR */
+}
+#dashboard .canvas-content a.button {
+  margin: 0 0 0 10px; /* LTR */
+}
+#dashboard .disabled-blocks h2 {
+  display: inline;
+  white-space: nowrap;
+}
+#dashboard .disabled-blocks .block .content,
+#dashboard .ui-sortable-helper .content {
+  display: none;
+}
+#dashboard .ui-sortable .block {
+  cursor: move;
+  min-height: 1px;
+}
diff --git a/core/modules/dashboard/dashboard.css b/core/modules/dashboard/dashboard.css
deleted file mode 100644
index 0570f7e..0000000
--- a/core/modules/dashboard/dashboard.css
+++ /dev/null
@@ -1,108 +0,0 @@
-/**
- * @file
- * Stylesheet for the Dashboard module.
- */
-
-#dashboard div.dashboard-region {
-  float: left;
-  min-height: 1px;
-}
-#dashboard div#dashboard_main {
-  margin-right: 1%; /* LTR */
-  width: 65%;
-}
-#dashboard div#dashboard_sidebar {
-  width: 33%;
-}
-#dashboard div.block {
-  margin-bottom: 20px;
-}
-#dashboard .dashboard-region .block {
-  clear: both;
-}
-#dashboard .dashboard-region .block-placeholder {
-  display: block;
-  height: 1.6em;
-  margin: 0 0 20px 0;
-  padding: 0;
-  width: 100%;
-}
-#dashboard div.block h2 {
-  float: none;
-}
-#dashboard #disabled-blocks .block,
-#dashboard .block-placeholder {
-  background: #E2E1DC;
-  -moz-border-radius: 4px;
-  border-radius: 4px;
-  float: left; /* LTR */
-  margin: 3px 3px 3px 0; /* LTR */
-  padding: 6px 4px 6px 8px; /* LTR */
-}
-#dashboard .dashboard-add-other-blocks {
-  margin: 10px 0 0 0;
-}
-#dashboard .ui-sortable {
-  border: 2px dashed #CCC;
-  padding: 10px;
-}
-#dashboard .canvas-content {
-  padding: 10px;
-}
-#dashboard .canvas-content a.button {
-  color: #5A5A5A;
-  margin: 0 0 0 10px; /* LTR */
-  text-decoration: none;
-}
-#dashboard .region {
-  margin: 5px;
-}
-#dashboard #disabled-blocks {
-  padding: 5px 0;
-}
-#dashboard #disabled-blocks .ui-sortable {
-  background-color: #777;
-  border: 0;
-  padding: 0;
-}
-#dashboard #disabled-blocks .region {
-  background-color: #E0E0D8;
-  border: #CCC 1px solid;
-  padding: 10px;
-}
-#dashboard #disabled-blocks h2 {
-  display: inline;
-  font-weight: normal;
-  white-space: nowrap;
-}
-#dashboard #disabled-blocks .block {
-  background: #444;
-  color: #FFF;
-}
-#dashboard.customize-inactive #disabled-blocks .block:hover {
-  background: #0074BD;
-}
-#dashboard #disabled-blocks .block-placeholder {
-  height: 1.6em;
-  width: 30px;
-}
-#dashboard #disabled-blocks .block .content,
-#dashboard .ui-sortable-helper .content {
-  display: none;
-}
-#dashboard .ui-sortable .block {
-  cursor: move;
-  min-height: 1px;
-}
-#dashboard .ui-sortable .block h2 {
-  background: transparent url(../../misc/draggable.png) no-repeat 0px -39px;
-  padding: 0 17px;
-}
-#dashboard.customize-inactive #disabled-blocks .block:hover h2 {
-  background: #0074BD url(../../misc/draggable.png) no-repeat 0px -39px;
-  color: #FFF;
-}
-#dashboard.customize-inactive .dashboard-region .ui-sortable .block:hover h2 {
-  background: #0074BD url(../../misc/draggable.png) no-repeat 3px -36px;
-  color: #FFF;
-}
diff --git a/core/modules/dashboard/dashboard.js b/core/modules/dashboard/dashboard.js
index ca2a3b5..6e967c0 100644
--- a/core/modules/dashboard/dashboard.js
+++ b/core/modules/dashboard/dashboard.js
@@ -72,13 +72,13 @@ Drupal.behaviors.dashboard = {
     $('div.customize .canvas-content').append('<a class="button" href="' + Drupal.settings.dashboard.dashboard + '">' + Drupal.t('Done') + '</a>');
 
     // Initialize drag-and-drop.
-    var regions = $('#dashboard div.region');
+    var regions = $('#dashboard .region');
     regions.sortable({
       connectWith: regions,
       cursor: 'move',
       cursorAt: {top:0},
       dropOnEmpty: true,
-      items: '> div.block, > div.disabled-block',
+      items: '> .block, > .disabled-block',
       placeholder: 'block-placeholder clearfix',
       tolerance: 'pointer',
       start: Drupal.behaviors.dashboard.start,
@@ -122,7 +122,7 @@ Drupal.behaviors.dashboard = {
     var item = $(ui.item);
 
     // If the block is in disabled state, remove width.
-    if ($(this).closest('#disabled-blocks').length) {
+    if ($(this).closest('.disabled-blocks').length) {
       item.css('width', '');
     }
     else {
diff --git a/core/modules/dashboard/dashboard.module b/core/modules/dashboard/dashboard.module
index 1891db5..46b7823 100644
--- a/core/modules/dashboard/dashboard.module
+++ b/core/modules/dashboard/dashboard.module
@@ -600,7 +600,8 @@ function dashboard_update() {
  */
 function theme_dashboard($variables) {
   extract($variables);
-  drupal_add_css(drupal_get_path('module', 'dashboard') . '/dashboard.css');
+  drupal_add_css(drupal_get_path('module', 'dashboard') . '/dashboard.base.css');
+  drupal_add_css(drupal_get_path('module', 'dashboard') . '/dashboard.admin.css');
   return '<div id="dashboard" class="clearfix">' . $element['#children'] . '</div>';
 }
 
diff --git a/core/modules/dashboard/dashboard.theme.css b/core/modules/dashboard/dashboard.theme.css
new file mode 100644
index 0000000..e69de29