diff --git a/agaric/css/agaric.css b/agaric/css/agaric.css
index f1c3e1a..14e8fd1 100644
--- a/agaric/css/agaric.css
+++ b/agaric/css/agaric.css
@@ -9963,6 +9963,9 @@ a:active {
   padding: 0.25em;
   margin: -0.25em; }
 
+a .icon:hover, a .icon:focus, a .icon:active {
+  background-color: transparent; }
+
 hr, .titlebar-bigborder, .media.media-comment, .media.media-comment + .media.media-comment,
 .media.media-comment .media.media-comment, .footer .container {
   border-top: 4px solid #193B68; }