.buy-overlay-modal
{
    background-color: rgba(0, 0, 0, 0.5);
    position: fixed;
    top:0;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 16px;
    z-index: 10000;
    overflow-y: auto;
    display: flex;
    align-items: center;
}

.buy-overlay-modal .buy-modal
{
    padding: 32px;
    margin: auto;
    width: 100%;
    max-width: 640px;
    background-color: white;
    border-radius: 20px;
}