odoo_theme/theme_artists/theme_common/views/s_masonry_block.xml

<?xml version="1.0" encoding="utf-8"?>
<odoo>
    <template id="s_masonry_block" name="Masonry Block">
        <section class="s_masonry_block">
            <div class="container-fluid">
                <div class="row">
                    <div class="block col-lg-6 text-center bg-img-03">
                        <div class="content">
                            <h2>A great title</h2>
                            <p>And a great subtitle</p>
                        </div>
                    </div>
                    <div class="s_masonry_block_pseudo_col col-lg-6">
                        <div class="row">
                            <div class="block col-lg-6 col-md-6 bg-alpha text-center">
                                <div class="content">
                                    <h3>A great title</h3>
                                    <p>And a great subtitle</p>
                                </div>
                            </div>
                            <div class="block col-lg-6 col-md-6 text-center bg-img-01">
                                <div class="content">
                                    <h3>A great title</h3>
                                    <p>And a great subtitle</p>
                                </div>
                            </div>
                            <div class="block col-lg-6 col-md-6 text-center bg-img-06">
                                <div class="content">
                                    <h3>A great title</h3>
                                    <p>And a great subtitle</p>
                                </div>
                            </div>
                            <div class="block col-lg-6 col-md-6 text-center bg-beta-lighter">
                                <div class="content">
                                    <h3>A great title</h3>
                                    <p>And a great subtitle</p>
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </section>
    </template>

    <template id="s_masonry_block-opt" inherit_id="website.snippet_options">
        <xpath expr="//div[@id='so_main_colorpicker']" position="attributes">
            <attribute name="data-selector" separator=", " add=".s_masonry_block .block"/>
        </xpath>
        <xpath expr="//div[@data-js='background']" position="attributes">
            <attribute name="data-selector" separator=", " add=".s_masonry_block .block"/>
        </xpath>
        <xpath expr="//div[@data-js='background_position']" position="attributes">
            <attribute name="data-selector" separator=", " add=".s_masonry_block .block"/>
        </xpath>
        <xpath expr="//div[@data-js='background']" position="before">
            <div data-selector=".s_masonry_block">
                <we-collapse-area>
                    <we-toggler><i class="fa fa-fw fa-expand"/> Inner Spacing</we-toggler>
                    <we-collapse>
                        <we-button data-select-class="">Normal</we-button>
                        <we-button data-select-class="s_ratio_2_1">Bigger</we-button>
                    </we-collapse>
                </we-collapse-area>
            </div>
        </xpath>
    </template>
</odoo>