add border-radius on the last visible flying add-on

media/css/zamboni/discovery-pane.css

@@ -525,7 +525,7 @@ section#featured-addons {
     margin: 0 -10px;
     clear: both;
 }
-#sub li.show {
+#promo-video-addons li.show {
     border-bottom: 0;
     border-top: 1px solid #cdd4de;
 }
@@ -533,7 +533,7 @@ section#featured-addons {
     border-bottom-color: #666;
 }
 #sub li:last-child {
-    border-bottom-width: 0;
+    border-bottom: 0;
 }
 
 #sub .featured li,
@@ -609,7 +609,9 @@ section#featured-addons {
 }
 
 #sub .featured li:last-child a,
-.featured .featured-personas ul li:last-child a span.addon-title {
+.featured .featured-personas ul li:last-child a span.addon-title,
+#promo-video-addons .show.last a,
+#promo-video-addons .show.last a span.addon-title {
     border-radius: 0 0 8px 8px;
 }
 

media/js/zamboni/discovery_pane.js

@@ -357,6 +357,9 @@ $(function() {
                 onStart: function() {
                     $video_details.hide();
                     addon.addClass('show');
+                    $addons.removeClass('last');
+                    // So we can do a nice border-radius on the last visible.
+                    $addons.filter(':visible:last').addClass('last');
                 },
                 onEnd: function() {
                     addon.removeClass('show');