diff --git a/css/sc-player-artwork/structure.css b/css/sc-player-artwork/structure.css
index be4561c..b818ce8 100755
--- a/css/sc-player-artwork/structure.css
+++ b/css/sc-player-artwork/structure.css
@@ -16,7 +16,7 @@
 .sc-player .sc-artwork-list{
   width: 100%;
   height: 50%;
-  background-color: #transparent;
+  background-color: transparent;
   list-style-type: none;
   position: relative;
 }
diff --git a/css/sc-player-red/structure.css b/css/sc-player-red/structure.css
index 14f6574..ae5ca9d 100755
--- a/css/sc-player-red/structure.css
+++ b/css/sc-player-red/structure.css
@@ -20,7 +20,7 @@
 .sc-player .sc-artwork-list{
   width: 100%;
   height: 50%;
-  background-color: #transparent;
+  background-color: transparent;
   list-style-type: none;
   position: relative;
   display: none;
diff --git a/css/sc-player-standard/structure-horizontal.css b/css/sc-player-standard/structure-horizontal.css
index 1c09a22..ff386c8 100755
--- a/css/sc-player-standard/structure-horizontal.css
+++ b/css/sc-player-standard/structure-horizontal.css
@@ -17,7 +17,7 @@
 .sc-player .sc-artwork-list{
   width: 50%;
   height: 100%;
-  background-color: #transparent;
+  background-color: transparent;
   list-style-type: none;
   position: relative;
 }
diff --git a/css/sc-player-standard/structure-vertical.css b/css/sc-player-standard/structure-vertical.css
index 4aa70f7..5de34e4 100755
--- a/css/sc-player-standard/structure-vertical.css
+++ b/css/sc-player-standard/structure-vertical.css
@@ -16,7 +16,7 @@
 .sc-player .sc-artwork-list{
   width: 100%;
   height: 50%;
-  background-color: #transparent;
+  background-color: transparent;
   list-style-type: none;
   position: relative;
 }