app/views/accounts/sessions/new.html.erb
<h3>Sign in</h3>
<div class="sign_in">
<%= form_for(@account, url: session_path(@account)) do |f| %>
<div class="field">
<%= f.label :email %><br />
<%= f.email_field :email, autofocus: true %>
</div>
<div class="field">
<%= f.label :password %><br />
<%= f.password_field :password, autocomplete: "off" %>
</div>
<% if devise_mapping.rememberable? -%>
<div class="checkbox">
<%= f.check_box :remember_me %>
<%= f.label :remember_me %>
</div>
<% end -%>
<hr>
<%= f.submit "Log in", class:"btn" %>
<%= render "accounts/shared/links" %>
<% end %>
</div>