.bttn {
    position: relative;
    z-index: 1;
    min-width: 200px;
    background: #FFFFFF;
    color: black !important;
    text-align: center;
    padding: 12px 20px;
}
.bttn span {
    display: inline-block;
    font-size: 1rem;
    font-weight: bold;
    text-align: center;
    text-decoration: none;
    text-transform: uppercase;
    opacity: 0;
    transform: translate(0, -20px);
    transition: 0.25s cubic-bezier(0.5, -1, 0.5, 2);
}
.bttn:before {
    content: attr(data-text);
    position: absolute;
    width: 100%;
    left: 0;
    font-size: 1rem;
    font-weight: bold;
    text-align: center;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 3.5px;
    opacity: 1;
    transform: translate(0, 0px);
    transition: 0.25s cubic-bezier(0.5, -1, 0.5, 2);
}
.bttn:hover:before,
.bttn:focus:before {
    opacity: 0;
    transform: translate(0, 20px);
}
.bttn:hover span,
.bttn:focus span {
    opacity: 1;
    transform: translate(0, 0);
}
.bttn:hover span:nth-child(1),
.bttn:focus span:nth-child(1) {
    transition-delay: 0.025s;
}
.bttn:hover span:nth-child(2),
.bttn:focus span:nth-child(2) {
    transition-delay: 0.05s;
}
.bttn:hover span:nth-child(3),
.bttn:focus span:nth-child(3) {
    transition-delay: 0.075s;
}
.bttn:hover span:nth-child(4),
.bttn:focus span:nth-child(4) {
    transition-delay: 0.1s;
}
.bttn:hover span:nth-child(5),
.bttn:focus span:nth-child(5) {
    transition-delay: 0.125s;
}
.bttn:hover span:nth-child(6),
.bttn:focus span:nth-child(6) {
    transition-delay: 0.15s;
}