app/views/user/sign-in.html.erb
<div class="section upload">
<div class="section-wrap">
<div class="section-item">
<div id="sign-in" class="section-title">
<%= t(:login) %>
</div>
<%= form_for :user, method: :post, url: '/user/login' do |f| %>
<div class="section-content">
<%= f.label t(:user_email) %>
<%= f.text_field :email %>
</div>
<div class="section-content">
<%= f.label t(:user_password) %>
<%= f.password_field :password %>
</div>
<div class="section-content">
<%= f.submit t(:login) %>
</div>
<% end %>
</div>
</div>
</div>