html, body {    height: 100%;/*/ / overflow-x: hidden;*/    position: relative;} .nav-item{     margin-right: 0;     padding-right: 0!important; }.sign-in-button{    border-radius: 25px;    border: 1px solid white;}.sign-in-button a {    color: white;    padding: 7px 30px;    display: block;}