/* Existing CSS for moving the menu to the left */
.pkp_structure_main {
    float: right;
    width: 75%;
}

.pkp_structure_sidebar {
    float: left;
    width: 25%;
}

/* New CSS to remove the vertical line artifact */
.pkp_structure_main::after,
.pkp_structure_main::before {
    display: none;
}
.pkp_structure_footer .pkp_brand,
.pkp_structure_footer .pkp_footer_content {
    display: none !important;
}