#upButton{position:fixed;bottom:20px;right:30px;z-index:99;border:none;outline:none;background-color:red;color:#fff;cursor:pointer;padding:15px;border-radius:10px;font-size:18px;opacity:0;transition:.5s}#upButton:hover{background-color:#555}a.nav-link{font-size:20px;margin-right:52px}body{min-height:100vh;position:relative}#content{padding-bottom:6rem}footer{position:absolute;bottom:0;width:100%;height:5rem;padding:1px}.showcase{min-height:30rem;background-size:cover}