// for easycut.es

function add_custom_html_after_footer_widgets() {
    ?>
    <div style="text-align: right; margin-top: 20px;">
        <img src="https://www.easycut.es/wp-content/uploads/2018/10/barra-gris300.png"><br />
    </div>
    <?php
}
add_action('wp_footer', 'add_custom_html_after_footer_widgets', 20);