app/views/devise/sessions/_new.html.erb
<div class='devise-form'>
<h2>Sign in</h2>
or <%= link_to 'request access', new_user_registration_path %>
<%= form_for(resource, as: resource_name, url: session_path(resource_name)) do |f| %>
<div class="field">
<%= f.label :email %>
<%= f.email_field :email, autofocus: true %>
</div>
<div class="field">
<%= f.label :password %>
<%= f.password_field :password, autocomplete: "off" %>
</div>
<% if devise_mapping.rememberable? -%>
<div class="field">
<%= f.check_box :remember_me %>
<%= f.label :remember_me %>
</div>
<% end -%>
<div class="actions">
<%= f.submit "Sign in" %>
</div>
<p>
<%= link_to "Forgot password?", new_password_path(resource_name) %>
</p>
<% end %>
</div>