diff --git a/components/search.less b/components/search.less
index 925205ce2..75a0796c1 100644
--- a/components/search.less
+++ b/components/search.less
@@ -19,6 +19,9 @@
 div#simpleSearch {
 	display: block;
 	width: 12.6em;
+	width: 20vw; /* responsive width */
+	min-width: 5em;
+	max-width: 20em;
 	padding-right: 1.4em;
 	height: 1.4em;
 	margin-top: 0.65em;