body.site-disspa .main-header_tematic {  position: relative; }  body.site-disspa .main-header_tematic::after {    content: "";    position: absolute;    top: -15px;    right: -90px;    width: 100px;    height: 100px;    background: url(https://uniba.it/it/ricerca/dipartimenti/fisica/img/logo-eccellenza-light.png) no-repeat center center;    background-size: contain; }    @media only screen and (max-width: 992px) {      body.site-disspa .main-header_tematic::after {        top: -15px;        right: -15px;        width: 70px !important;        height: 70px !important;   }}