design-themes/theme_bistro/views/snippets/s_picture.xml

<?xml version="1.0" encoding="utf-8"?>
<odoo>

<template id="s_picture" inherit_id="website.s_picture">
    <!-- Section -->
    <xpath expr="//section" position="attributes">
        <attribute name="class" add="o_cc3" remove="pb64" separator=" "/>
    </xpath>
    <!-- Size -->
    <xpath expr="//div[hasclass('col-lg-12')]" position="attributes">
        <attribute name="class" add="col-lg-8 offset-lg-2" remove="col-lg-12" separator=" "/>
    </xpath>
    <!-- Title -->
    <xpath expr="//h2" position="replace" mode="inner">
        Today's special
    </xpath>
    <!-- Text -->
    <xpath expr="//p" position="replace" mode="inner">
        Taste our chef's special, an almond macaroon with orange blossom buttercream.
    </xpath>
    <!-- Caption -->
    <xpath expr="//figcaption" position="replace" mode="inner">
        The perfect dessert to share for the table.
    </xpath>
</template>

</odoo>