Fix bug.

app/assets/stylesheets/custom_field.css

@@ -1,6 +1,6 @@
 input[type=checkbox] {
   font-size: 1em;
-  -webkit-appearance: none;
+  /*-webkit-appearance: none;*/
   width: 1.2em;
   height: 1.2em;
   border-radius: 5px;

app/controllers/asks_controller.rb

@@ -346,7 +346,12 @@ class AsksController < ApplicationController
               when 'phone'
                 f1['content'] = text_field_tag(field_name,nil,placeholder:@default_ask_setting.field_name("#{field}"),required: required)
               when 'appointment'
-                f1['content'] = "<div class=\"default_picker\">#{text_field_tag(field_name,nil,placeholder:@default_ask_setting.field_name("#{field}"),required: required)}</div>"
+                if @appointment_idx.nil?
+                  @appointment_idx = 0
+                else
+                  @appointment_idx += 1
+                end
+                f1['content'] = "<div class=\"default_picker\">#{text_field_tag(field_name,nil,placeholder:@default_ask_setting.field_name("#{field}"),data: {format: 'yy/mm/dd HH:MM'},required: required, id: "ask_question_appointment_#{@appointment_idx}")}</div>"
               when 'recaptcha'
                 f1['content'] = "#{gotcha_error}#{gotcha}"
               when 'usage_rule'