diff --git a/css/structure/icon.css b/css/structure/icon.css
index fa6cd82..ffecfb1 100644
--- a/css/structure/icon.css
+++ b/css/structure/icon.css
@@ -13,6 +13,7 @@
   white-space: nowrap;
   word-wrap: normal;
   direction: ltr;
+  background: inherit;
   /* Support for all WebKit browsers. */
   -webkit-font-smoothing: antialiased;
   /* Support for Safari and Chrome. */