.card-area {
    position: relative;
}

.center-text {
    width: 100%;
    height: 2.5rem;
    color: #38f;
    z-index: 200;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: .3rem;
    line-height: .3rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}