diff --git a/css/light-grey.css b/css/light-grey.css
index 9ac01f31a..02e106335 100644
--- a/css/light-grey.css
+++ b/css/light-grey.css
@@ -1442,6 +1442,8 @@ fieldset .details > .field_container {
 #SiloSelection * {
   box-sizing: border-box;
   vertical-align: middle;
+}
+#SiloSelection .ac_input {
   width: 100%;
 }
 #SiloSelection .field_input_extkey {
diff --git a/css/light-grey.scss b/css/light-grey.scss
index 1d1350990..ae8ed90ae 100644
--- a/css/light-grey.scss
+++ b/css/light-grey.scss
@@ -1604,6 +1604,9 @@ fieldset .details>.field_container {
 	*{
 		box-sizing: border-box;
 		vertical-align: middle;
+	}
+
+	.ac_input {
 		width: 100%;
 	}