.btn-1-2 {
    text-decoration: none;
    line-height: 80px;
    box-sizing: border-box;
    transition: 1s ease-in-out;
    font-family: "Open Sans", Helvetica, arial, sans-serif;
    text-align: center;
    color: #a18ca2;
    position: relative;
    display: block;
    overflow: hidden;
    width: 100%;
    height: 80px;
    max-width: 350px;
    margin: 1rem auto;
    text-transform: uppercase;
    border: 1px solid currentColor;
}
a.btn-1-2, a.btn-1-2:visited, a.btn-1-2:focus, a.btn-1-2:active, a.btn-1-2:link
{
    color: #a18ca2;
}
.btn-1-2:before, .btn-1-2:after {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    border-top: 0;
    border-bottom: 80px solid #564858;
    z-index: 0;
    box-sizing: border-box;
    transition: 0.5s ease-in-out;
}
.btn-1-2:before {
    right: -90px;
    border-right: 80px solid transparent;
    transform: translateX(-100%);
}
.btn-1-2:after {
    left: -90px;
    border-left: 80px solid transparent;
    transform: translateX(100%);
}
a.btn-1-2:hover {
    color: #e3dde4;
}
.btn-1-2:hover:before {
    transform: translateX(-45%);
}
.btn-1-2:hover:after {
    transform: translateX(45%);
}
.btn-1-2>span {
    position: relative;
    z-index: 1;
}