Index: src/wp-admin/css/themes.css
===================================================================
--- src/wp-admin/css/themes.css	(revision 27527)
+++ src/wp-admin/css/themes.css	(working copy)
@@ -1155,9 +1155,10 @@
 	color: #fff;
 }
 .theme-install-php .theme-search {
-	position: absolute;
-		right: 10px;
-		top: 9px;
+	margin-top: 11px;
+	margin-right: -8px;
+	margin-bottom: 11px;
+	float: right;
 	font-size: 16px;
 	font-weight: 300;
 	line-height: 1.5;