design-themes/theme_treehouse/views/snippets/s_cover.xml

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

<template id="s_cover" inherit_id="website.s_cover">
    <!-- Section -->
    <xpath expr="section" position="attributes">
        <attribute name="class" add="pt160 pb160" remove="pt232 pb232" separator=" "/>
    </xpath>
    <!-- Title -->
    <xpath expr="//h1" position="before">
        <i class="fa fa-2x fa-bug d-block my-3 mx-auto rounded-circle bg-o-color-4 text-o-color-1"/>
    </xpath>
    <xpath expr="//h1" position="replace" mode="inner">
        <font style="font-size: 62px;">— Life on Earth —</font>
    </xpath>
    <!-- Paragraphs -->
    <xpath expr="//p" position="replace" mode="inner">
        Our mission is to create a shared plan<br/> for saving the planet’s most exceptional wild places.
    </xpath>
    <xpath expr="//p" position="after">
        <p class="lead" style="text-align: center;"><br/></p>
    </xpath>
    <!-- Button -->
    <xpath expr="//a//t" position="replace" mode="inner">
        Get involved
    </xpath>
</template>

</odoo>