design-themes/theme_clean/views/snippets/s_title.xml

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

<template id="s_title" inherit_id="website.s_title">
    <!-- Section -->
    <xpath expr="//section" position="attributes">
        <attribute name="class" remove="pt40" add="pt80" separator=" "/>
    </xpath>
    <!-- Title -->
    <xpath expr="//h2" position="replace" mode="inner">
        We create the perfect <br/>tailored solution for you
    </xpath>
    <xpath expr="//h2" position="attributes">
        <attribute name="class" remove="display-3-fs" separator=" "/>
    </xpath>
</template>

</odoo>