diff --git a/src/elements/header.less b/src/elements/header.less
index 721a00095..cf01957a7 100755
--- a/src/elements/header.less
+++ b/src/elements/header.less
@@ -309,7 +309,7 @@ h5.ui.header {
 --------------------*/
 
 .ui.block.header {
-  background-color: #F5F5F5;
+  background-color: rgba(0, 0, 0, 0.05);
   padding: 0.5em 1em;
 }