html, body{
    width: 100%;
    height: 100%;
    margin: 0%;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

table{
    width: 100%;
    height: 100%;
    border-collapse: collapse;
}

table, td, tr{
    border: 1px solid black;
}

.bg-color{
    background-color: black;
}

.message{
    width: 15rem;
    height: 5rem;
    margin: 10px;
    background-color: black;
    color: white;
    border-radius: 2rem;
    position: absolute;
    display: flex;
    justify-content: center;
    align-items: center;
    top: 0px;
    left: 0px;
    opacity: 0;
}