Witaj!
<%= form_for(resource, as: resource_name, url: session_path(resource_name), html: {class: 'user'}) do |f| %>
<%= f.email_field :email, autofocus: true, autocomplete: "email", placeholder: 'Email', class: 'form-control form-control-user' %>
<%= f.password_field :password, autocomplete: "current-password", placeholder: 'Hasło', class: 'form-control form-control-user' %>
<% if devise_mapping.rememberable? %>
<% end %>
<%= f.submit t('login'), class: 'btn btn-primary btn-user btn-block' %>
<% end %>
<%= render "devise/shared/links" %>