.fixed-top {
    position: fixed;
    top: -250px;
    transform: translateY(250px);
    transition: transform .5s;
    -webkit-transition: transform .5s;
    -moz-transition: transform .5s;
    -ms-transition: transform .5s;
    -o-transition: transform .5s;
    -webkit-transform: translateY(250px);
    -moz-transform: translateY(250px);
    -ms-transform: translateY(250px);
    -o-transform: translateY(250px);
}