diff --git a/src/assets/css/main.css b/src/assets/css/main.css
index a92b357..faa62e8 100644
--- a/src/assets/css/main.css
+++ b/src/assets/css/main.css
@@ -240,6 +240,7 @@ input[type=checkbox]:checked {
 #ext {
     -moz-appearance: textfield;
     appearance: textfield;
+    width: 70px;
 }
 
 .hidden {