diff --git src/wp-content/themes/twentyfifteen/style.css src/wp-content/themes/twentyfifteen/style.css
index 6beb2e5dcf..55141426fe 100644
--- src/wp-content/themes/twentyfifteen/style.css
+++ src/wp-content/themes/twentyfifteen/style.css
@@ -548,7 +548,7 @@ input[type="submit"] {
 	font-size: 1.2rem;
 	font-weight: 700;
 	padding: 0.7917em 1.5em;
-	text-transform: uppercase;
+	text-transform: capitalize;
 }
 
 button:hover,