.overlay {
    background-color: #000000;
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 1;
    opacity: 0.6;
}
.overlay > .loader {
    position: fixed;
    left: 47%;
    top: 47%;
}
.couponError {
    color: red;
}
.hide {
    display: none;
}