app/views/sessions/new.html.erb
<h2>Sign in</h2>
<%= form_for(resource, :as => resource_name, :url => session_path(resource_name)) do |f| %>
<p><%= f.label :email %><br />
<%= f.email_field :email %></p>
<p><%= f.label :password %><br />
<%= f.password_field :password %></p>
<% if devise_mapping.rememberable? -%>
<p><%= f.check_box :remember_me %> <%= f.label :remember_me %></p>
<% end -%>
<p><%= f.submit "Sign in" %></p>
<% end %>
<%= render :partial => "devise/shared/links" %>