h3.title{float:left}span.register-link{float:right}@media(max-width:575.98px){h3.title{float:none;margin-bottom:15px}span.register-link{float:none;margin-bottom:15px;display:block}}.login-form{min-height:50vh;max-width:800px;margin-left:auto;margin-right:auto}