odoo_theme/theme_bookstore/theme_common/views/s_numbers.xml

<?xml version="1.0" encoding="utf-8"?>
<odoo>
    <template name="Numbers" id="s_numbers">
        <section class="s_numbers pt24 pb24" style="background-color: rgb(239, 239, 239);">
            <div class="container">
                <div class="row">
                    <div class="col-lg-3 text-center pt24 pb24">
                        <span class="s_number display-4 text-alpha">12</span>
                        <h6>Useful options</h6>
                    </div>
                    <div class="col-lg-3 text-center pt24 pb24">
                        <span class="s_number display-4 text-alpha">45</span>
                        <h6>Beautiful snippets</h6>
                    </div>
                    <div class="col-lg-3 text-center pt24 pb24">
                        <span class="s_number display-4 text-gamma">8</span>
                        <h6>Amazing pages</h6>
                    </div>
                    <div class="col-lg-3 text-center pt24 pb24">
                        <span class="s_number display-4 text-gamma">37</span>
                        <h6>Outstanding images</h6>
                    </div>
                </div>
            </div>
        </section>
    </template>
</odoo>