diff --git a/public/css/module.less b/public/css/module.less
index 8163b18..0a359b7 100644
--- a/public/css/module.less
+++ b/public/css/module.less
@@ -66,12 +66,14 @@ form[name=form_timerangepickercommon_graphite] {
 }
 
 form[name=form_timerangepickercustom_graphite] {
+  min-width: 17em;
+
   input[type=date] {
-    width: 12.5em;
+    min-width: 8em;
   }
 
   input[type=time] {
-    width: 7.5em;
+    min-width: 5em;
   }
 }