wblog/app/views/subscribes/new.html.slim

.row
  .small-12.medium-12.large-9.columns
    h2 订阅

    = simple_form_for @subscribe do |f|
      = f.input :email
      = f.button :submit, value: '订阅', data: { 'disable-with'=> '订阅中...' }