diff --git a/src/librustdoc/html/static/css/rustdoc.css b/src/librustdoc/html/static/css/rustdoc.css
index 063082c1c7cad..6d7e0a5ccd3c4 100644
--- a/src/librustdoc/html/static/css/rustdoc.css
+++ b/src/librustdoc/html/static/css/rustdoc.css
@@ -1223,6 +1223,7 @@ a.test-arrow:hover {
 .item-spacer {
 	width: 100%;
 	height: 12px;
+	display: block;
 }
 
 .out-of-band > span.since {