#cover{
    height: 100%;
    width: 100%;
    top:0;
    left: 0;
    background-color: black;
    opacity: 0.5;
    position: absolute;
    display:none;
}

#cover-message{
    height: 100%;
    width: 100%;
    top:0;
    left: 0;
    /*background-color: #cef5ff;*/
    font-size: 2vmax;
    font-weight: bold;
    color: #c4c4c4;
    overflow:hidden;
    align-items: center;
    justify-content: center;
    word-break:keep-all;
    position: absolute;
    display:none;
}

.cover-display #cover{
    display:inline;
}

.cover-display #cover-message{
    display:flex;
}