.breakdance .side-nav{position:fixed;top:250px;max-width:340px}#main-content{min-height:calc(100vh - 245px)}body{position:relative}.breakdance .breakdance-link.slide-up{opacity:1;transition:400ms;transform:translateY(0px)}.breakdance .back-img{position:absolute;top:0px;left:0px;right:0px;bottom:0px}.breakdance .back-img img{height:100%;object-fit:cover;opacity:.075;width:100%}