#session-block-message {
    display: none;
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.8);
    z-index: 1010;
    text-align: center;
}

.session-message {
    display: inline-block;
    padding: 25px;
    font-size: 24px;
    color:  white;
    margin-top: 100px;
}