diff --git a/src/wp-content/themes/twentyfifteen/css/editor-blocks.css b/src/wp-content/themes/twentyfifteen/css/editor-blocks.css
index 91595e6304..57cbe440d5 100644
--- a/src/wp-content/themes/twentyfifteen/css/editor-blocks.css
+++ b/src/wp-content/themes/twentyfifteen/css/editor-blocks.css
@@ -537,6 +537,17 @@ p.has-drop-cap:not(:focus)::first-letter {
 	font-weight: 400;
 }
 
+/* Search */
+
+.wp-block-search__button {
+	background-color: #333;
+	color: #fff;
+	font-family: "Noto Sans", sans-serif;
+	font-size: 14px;
+	font-weight: 700;
+	text-transform: uppercase;
+}
+
 @media screen and (min-width: 46.25em) {
 	.edit-post-visual-editor .wp-block-quote p {
 		font-size: 20px;