.c-popup-block {
    position: fixed;
    left: 0;
    top: 0;
    background: rgba(80, 80, 80, 0.5);
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 20000;
}
.c-popup-block__box {
    border-radius: 5px;
    text-align: center;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: whitesmoke;
    box-sizing: border-box;
}