app/views/auth/confirmations/new.html.erb
<h1>Lets confirm your email</h1>
<%= form_tag auth_confirmation_path do %>
<div class='form-group'>
<%= label_tag :token %>
<%= text_field_tag :token, nil, class: 'form-control' %>
</div>
<div class='actions'>
<%= submit_tag "Verify my Email", class: 'btn btn-success' %>
</div>
<% end %>