.pkp_site_name {
    text-align: center !important;
}

.pkp_site_name .is_img {
    text-align: center !important;
}

.pkp_site_name .is_img img {
    display: block;
    margin: 0 auto !important;
    max-height: 1500px;
    max-width: 100%;
    width: auto;
    height: auto;
}