silverstripe-webpack/app/templates/SilverShop/Page/Layout/CartPage.ss

<div class="page-content">
    <div class="element cart-page">
        <% include Content %>

        <div class="container">
            <% if $Cart %>

                <% if $CartForm %>
                    $CartForm
                <% else %>
                    <% with $Cart %><% include SilverShop\Cart\Cart Editable=true %><% end_with %>
                <% end_if %>

            <% else %>
                <div class="alert alert-warning message warning"><%t SilverShop\Cart\ShoppingCart.NoItems "There are no items in your cart." %></div>
            <% end_if %>

            <div class="cart-footer">
                <% if $ContinueLink %>
                    <a class="continuelink btn btn-primary" href="$ContinueLink">
                        <i class="fas fa-chevron-left"></i>
                        <%t SilverShop\Cart\ShoppingCart.ContinueShopping 'Continue Shopping' %>
                    </a>
                <% end_if %>

                <% if $Cart %>
                    <% if $CheckoutLink %>
                        <a class="checkoutlink btn btn-primary" href="$CheckoutLink">
                            <%t SilverShop\Cart\ShoppingCart.ProceedToCheckout 'Proceed to Checkout' %>
                            <i class="fas fa-chevron-right"></i>
                        </a>
                    <% end_if %>
                <% end_if %>
            </div>
        </div>
    </div>
</div>