app/views/sessions/new.html.erb
<div class="login_form">
<% if flash[:alert] %>
<p id="notice"><%= flash[:alert] %></p>
<% end %>
<%= form_tag do %>
<fieldset>
<legend>Please log in</legend>
<div>
<%= label_tag :name, 'Name' %>
<%= text_field_tag :name, params[:name] %>
</div>
<div>
<%= label_tag :password, 'Password' %>
<%= password_field_tag :password, params[:password] %>
</div>
<div>
<%= submit_tag "Login" %>
</div>
</fieldset>
<% end %>
</div>