.link-special-discount{
    font-weight:900;
    color:#000
}
@keyframes flash {
    0%, 100% {
        background-color: transparent;
        color: #fff;
        border: 1px solid #dd2d36;
    }

    50% {
        background-color: #dd2d36;
        color: #000;
    }
}
.link-special-discount {
    animation: flash 1.5s infinite;
    transition: background-color 0.75s, color 0.75s;
}