.contentBox {
    padding: 20px;
    width: 500px;
    height: 520px;
    background-color: #f0f0f0;
    border-radius: 10px;
    box-shadow: 5px 5px 10px rgba(0, 0, 0, 0.3);
}

.backgroundTint {
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.6);
}

.shown {
    display: inline;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.hidden {
    display: none;
}