diff -u b/core/themes/bartik/css/components/search-form.css b/core/themes/bartik/css/components/search-form.css
--- b/core/themes/bartik/css/components/search-form.css
+++ b/core/themes/bartik/css/components/search-form.css
@@ -5,6 +5,9 @@
 
 .search-form {
   font-size: 0.875rem;
+}
+.search-form,
+.search-form .container-inline {
   position: relative;
 }
 .search-form .form-search {
@@ -39,7 +42,7 @@
   border-radius: 0 4px 4px 0;
   width: 27px;
   position: absolute;
-  top: 0;
+  bottom: 0;
   right: 0;
 }
 [dir="rtl"] .button.search-form__submit,