design-themes/theme_nano/views/snippets/s_three_columns.xml

<?xml version="1.0" encoding="utf-8"?>
<odoo>
    <template id="s_three_columns" inherit_id="website.s_three_columns">
        <!-- Section -->
        <xpath expr="//section" position="attributes">
            <attribute name="class" add="pt80 pb80" remove="pt32 pb32" separator=" "/>
        </xpath>
        <!-- Column #01 -->
        <xpath expr="//div[hasclass('row')]/div[1]" position="attributes">
            <attribute name="class" add="offset-lg-2" separator=" "/>
        </xpath>
        <xpath expr="//div[hasclass('row')]/div[1]//*[hasclass('card-title')]" position="replace">
            <h4 class="card-title">Handcrafted</h4>
        </xpath>
        <xpath expr="//div[hasclass('row')]/div[1]//*[hasclass('card-text')]" position="replace">
            <p class="card-text">People should love the things they own. Things should be built to last.</p>
        </xpath>
        <!-- Column #02 -->
        <xpath expr="//div[hasclass('row')]/div[2]//*[hasclass('card-title')]" position="replace">
            <h4 class="card-title">Tailored</h4>
        </xpath>
        <xpath expr="//div[hasclass('row')]/div[2]//*[hasclass('card-text')]" position="replace">
            <p class="card-text">Made in Santa's Workshop. High quality fabric &amp; exclusive designs.</p>
        </xpath>
        <!-- Column #03 -->
        <xpath expr="//div[hasclass('row')]/div[3]" position="replace"/>
    </template>
</odoo>