/* Justify text for the Article Abstract */
.obj_article_details .abstract {
    text-align: justify;
}

/* Justify text for the Issue Description/Summary */
.issue_description,
.issue_toc .description {
    text-align: justify;
}

/* Optional: If the above doesn't work, try this more general paragraph tag fix for the main content area */
.pkp_structure_main p {
    text-align: justify;
}