.single .thumbnail{display:none}@media screen and (max-width:980px){#main-header{top:-100%!important;position:fixed!important;transition:all 1s ease!important}.et-fixed-header#main-header{top:0!important}@media only screen and (max-width:767px){body header img#logo{max-width:80%!important;max-height:80%!important;height:auto!important;width:auto!important}}