diff --git a/core/themes/bartik/css/components/node.css b/core/themes/bartik/css/components/node.css
index e557172..f4ecd3b 100644
--- a/core/themes/bartik/css/components/node.css
+++ b/core/themes/bartik/css/components/node.css
@@ -12,24 +12,28 @@
 .node--view-mode-teaser .node__content {
   font-size: 1em;
 }
+
 .node--view-mode-teaser h2 {
-  margin-top: 0;
   padding-top: 0.5em;
 }
+
 .node--view-mode-teaser h2 a {
   color: #181818;
 }
+
 .node--view-mode-teaser {
   border-bottom: 1px solid #d3d7d9;
   margin-bottom: 30px;
   padding-bottom: 15px;
 }
+
 .node--view-mode-teaser.node--sticky {
   background: #f9f9f9;
   background: rgba(0, 0, 0, 0.024);
   border: 1px solid #d3d7d9;
   padding: 0 15px 15px;
 }
+
 .node--view-mode-teaser .node__content {
   clear: none;
   line-height: 1.6em;
@@ -42,10 +46,12 @@
   color: #68696b;
   margin-bottom: -5px;
 }
+
 .node__meta .field-name-field-user-picture img {
   float: left; /* LTR */
   margin: 1px 20px 0 0; /* LTR */
 }
+
 [dir="rtl"] .node__meta .field-name-field-user-picture img {
   float: right;
   margin-left: 20px;
@@ -56,6 +62,7 @@
 .node__links {
   text-align: right; /* LTR */
 }
+
 [dir="rtl"] .node__links {
   text-align: left;
 }
@@ -64,6 +71,7 @@
 .node--unpublished {
   padding: 20px 15px 0;
 }
+
 .node--unpublished .comment-text .comment-arrow {
   border-left: 1px solid #fff4f4;
   border-right: 1px solid #fff4f4;
diff --git a/core/themes/bartik/css/components/tabs.css b/core/themes/bartik/css/components/tabs.css
index 31becdd..5154904 100644
--- a/core/themes/bartik/css/components/tabs.css
+++ b/core/themes/bartik/css/components/tabs.css
@@ -4,8 +4,10 @@ div.tabs {
   font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
   margin-bottom: 20px;
 }
-.tabs ul.primary {
+.main-content .tabs ul.primary {
   font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
+  margin: 0;
+  padding: 0;
 }
 .tabs ul.primary li a {
   color: #000;
diff --git a/core/themes/bartik/css/layout.css b/core/themes/bartik/css/layout.css
index 228b2c9..0112af4 100644
--- a/core/themes/bartik/css/layout.css
+++ b/core/themes/bartik/css/layout.css
@@ -88,9 +88,6 @@
   #sidebar-second {
     width: 50%;
   }
-  #sidebar-second {
-    margin-left: 50%; /* LTR */
-  }
   [dir="rtl"] #sidebar-second {
     margin-right: 50%;
   }