<div class="container">

    <div class="row row-grid">
        <div class="col-xs-12 col-md-6 offset-md-3">
            <div class="page-title">
                <h3>Log in</h3>
            </div>
        </div>
    </div>

    <div class="row row-grid">
        <div class="col-xs-12 col-md-6 offset-md-3">
            <%= form_for :session,
                html: { class: "mdl-card mdl-shadow--2dp card-form" },
                url: login_path do |f|%>

                <div class="mdl-card__supporting-text">
                    <div class="mdl-textfield mdl-js-textfield mdl-textfield--floating-label">
                        <%= f.label :email, class: "mdl-textfield__label" %>
                        <%= f.email_field :email, class: "mdl-textfield__input" %>
                    </div>
                    <div class="mdl-textfield mdl-js-textfield mdl-textfield--floating-label">
                        <%= f.label :password, class: "mdl-textfield__label" %>
                        <%= f.password_field :password,
                            class: "mdl-textfield__input",
                            autocomplete: "off" %>
                    </div>
                </div>
                <div class="mdl-card__actions mdl-card--border">
                    <%= f.submit "Log in",
                        class: "mdl-button mdl-js-button mdl-button--raised
                                mdl-button--colored mdl-js-ripple-effect" %>
                </div>
            <% end %>
        </div>
    </div>

</div>

Create the sign up view template for the sessions controller
Create the sign up view template for the sessions controller

