Add details { display: block; } for FF.

tabatkins · tabatkins · commit 8eb3cac5d9a8 · 2014-01-24T15:41:21.000-08:00
diff --git a/default.css b/default.css
@@ -272,10 +272,12 @@ span.note, span.issue {
 details.why {
 	border-color: #52E052;
 	background: #E9FBE9;
+	display: block;
 }
 
 details.why > summary {
 	font-style: italic;
+	display: block;
 }
 
 details.why[open] > summary {
