anchor.diff:  
   
   mixin countries_options()
  -	option(value='-', disabled, selected) #{translate("country")}
  +	option(value='', disabled, selected) #{translate("country")}
   	option(value='-') --------------
   	option(value='AF') Afghanistan
   	option(value='AL') Albania
  
positive.code: 													option(value="2025") 2025
  													option(value="2026") 2026
  								.row
  									.col-md-6
  										.form-group
  											input.form-control(type='text', value='', maxlength='255', tabindex='1', onkeyup='', data-recurly="first_name", ng-model="data.first_name", required, placeholder="#{translate('first_name')}")
  									.col-md-6
  										.form-group
  											input.form-control(type='text', value='', maxlength='255', tabindex='1', onkeyup='', data-recurly="last_name", ng-model="data.last_name", required, placeholder="#{translate('last_name')}")
  								hr
  								.form-group
  									label #{translate("billing_address")}
  									input.form-control(type='text', value='', maxlength='255', tabindex='1', onkeyup='', ng-model="data.address1")
  								.form-group
  									input.form-control(type='text', value='', maxlength='255', tabindex='1', onkeyup='', ng-model="data.address2")
  								.row
  									.col-md-8
  										.form-group
  											input.form-control(type='text', value='', maxlength='255', tabindex='1', onkeyup='', data-recurly="city", ng-model="data.city", placeholder="#{translate('city')}")
  									.col-md-4
  											input.form-control(type='text', value='', maxlength='255', tabindex='1', onkeyup='', data-recurly="postal_code", ng-model="data.postal_code", placeholder="#{translate('zip_post_code')}")
  
  								.form-group
  									select.form-control(data-recurly="country", ng-model="data.country", required)
  										mixin countries_options()
  								if showCouponField == 'true'
  									.form-group
  										input.form-control(type='text', ng-blur="applyCoupon()", ng-model="data.coupon", placeholder="#{translate('coupon')}")
  
  								.form-group
  									button.btn.btn-success(ng-click="submit()", ng-disabled="processing") #{translate("upgrade_now")} 						
  
negative.code: 											.form-group
  												div(ng-hide="validation.correctCvv") #{translate("invalid")} CVV
  												div(ng-hide="validation.correctCardNumber") #{translate("invalid")} #{translate("credit_card_number")}
  										.col-md-5
  											.form-group(ng-class="validation.correctCardNumber ? '' : 'has-error' ")
  												input.form-control(ng-model='data.number', ng-blur="validateCardNumber()", placeholder="#{translate('credit_card_number')}")
  										.col-md-3
  