.overlay-container {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 99999;
}

.overlay-box {
    position: absolute;
    top: 60%;
    left: 42%;
    transform: translate(-50%, -50%);
    width: 600px;
    box-shadow: 0px 4px 18px #DDDDDD;
}


@media (max-width:992px) {
    .overlay-box {
        top: 50%;
        left: 50%;
        width: 98%;
    }
}