= form_for(resource, as: resource_name, url: registration_path(resource_name), html:{id:'registration-form'}) do |f|
        = devise_error_messages!

        div style="padding:4px"
            div class="input-group input-group-lg"
                span class="input-group-addon"
                    i class="glyphicon glyphicon-envelope"
                = f.email_field :email, autofocus: true, placeholder: "Email address", class:"form-control", style:"height:60px"