diff --git a/assets/css/docs.css b/assets/css/docs.css
index 3d5602480d..0c59808872 100644
--- a/assets/css/docs.css
+++ b/assets/css/docs.css
@@ -462,6 +462,9 @@ body {
 .bs-example-form .input-group {
   margin-bottom: 10px;
 }
+.bs-example > textarea.form-control {
+  resize: vertical;
+}
 
 /* List groups */
 .bs-example > .list-group {