.tt{
    margin-left: auto;
    border: 1px solid white;
    border-collapse: collapse;
    margin-right: auto;
    background-color: rgba(0, 0, 0, 0.7);
    color: whitesmoke;
}

.tt td{
    text-align: center;
    border: 1px solid whitesmoke;
    padding: 10px 10px 10px 10px;
}