diff --git a/core/themes/bartik/css/base/elements.css b/core/themes/bartik/css/base/elements.css
index ead25e9..8810d9d 100644
--- a/core/themes/bartik/css/base/elements.css
+++ b/core/themes/bartik/css/base/elements.css
@@ -35,29 +35,41 @@ h2,
 h3,
 h4,
 h5,
-h6 {
+h6,
+.header-a,
+.header-b,
+.header-c,
+.header-d,
+.header-e,
+.header-f {
   margin: 1.0em 0 0.5em;
   font-weight: inherit;
 }
-h1 {
+h1,
+.header-a {
   font-size: 1.357em;
   color: #000;
 }
-h2 {
+h2,
+.header-b {
   font-size: 1.143em;
 }
-h3 {
+h3,
+.header-c {
   font-size: 1.092em;
 }
-h4 {
+h4,
+.header-d {
   font-size: 1.05em;
 }
-h5 {
+h5,
+.header-e {
   font-size: 0.889em;
   text-transform: uppercase;
   letter-spacing: 0.1em;
 }
-h6 {
+h6,
+.header-f {
   font-size: 0.67em;
   text-transform: uppercase;
   letter-spacing: 0.1em;