.upsale-button {
    position: relative;
    z-index: 0;
    height: 40px;
    overflow: hidden;
    border: none !important;
    padding: 0 !important;
    background: #5D5DFF !important;
    color: #656565;
    background: white;
    border-radius: 8px;
    width: 100%;
    min-width: 100px;
    text-align: center;
    font-size: 14px;
    font-weight: 400;
    box-shadow: 0 4px 50px 0 rgb(0 0 0 / 7%);
    transition: .2s all linear;
    text-decoration: initial;
    cursor: pointer;
}

.upsale-button span {
    position: relative;
    z-index: 1;
    height: calc(100% - 4px);
    width: calc(100% - 4px);
    top: 2px;
    left: 2px;
    align-items: center;
    display: flex;
    justify-content: center;
    border-radius: 8px;
    color: white;
    background: #5D5DFF;
}

.upsale-button:after {
    content: "";
    position: absolute;
    z-index: -2;
    left: -50%;
    top: -50%;
    width: 200%;
    height: 200%;
    background-color: transparent;
    background-repeat: no-repeat;
    background-size: 50% 50%, 50% 50%;
    background-position: 0 0, 100% 0, 100% 100%, 0 100%;
    background-image: linear-gradient(90deg, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 1) 50%, rgba(255, 255, 255, 0) 100%);
    -webkit-animation: rotate 2s linear infinite;
    animation: rotate 2s linear infinite;
}


@-webkit-keyframes rotate {
    100% {
        transform: rotate(360deg);
    }
}

@keyframes rotate {
    100% {
        transform: rotate(360deg);
    }
}