app/views/devise/sessions/new.html.erb
<div id="page-title">
<h1>Log in</h1>
</div>
<%= simple_form_for(resource, as: resource_name, url: session_path(resource_name)) do |f| %>
<div class="form-inputs">
<%= f.input :email,
required: false,
autofocus: true,
input_html: { autocomplete: "email" } %>
<%= f.input :password,
required: false,
input_html: { autocomplete: "current-password" } %>
<%= f.input :remember_me, as: :boolean if devise_mapping.rememberable? %>
</div>
<div class="form-actions">
<%= f.button :submit, "Log in", class: "btn btn-primary mb-4" %>
</div>
<% end %>
<%= render "devise/shared/links" %>