.wp-block-paragraph.is-style-lpmpp-justify,
p.is-style-lpmpp-justify {
    text-align: justify !important;
    text-justify: inter-word;
    hyphens: auto;
}

.editor-styles-wrapper .wp-block-paragraph.is-style-lpmpp-justify {
    text-align: justify !important;
    text-justify: inter-word;
    hyphens: auto;
}