table {
    border-collapse: collapse;
}

.firstcol {
    width: 100px;
}

.cellwid {

    width: 150px;
}

.cellwind {
    background-color: white;
}

.text {
    text-align: center;
}

.tank {
    border: 1px solid black;
    border-radius: 5px;
    text-align: center;
}

.space {
    padding-top: 15px;
    padding-right: 15px;
    padding-left: 15px;
    padding-bottom: 15px;
}
/* tr {
    border: 5px solid black;
} */

/* td {
    padding: 10px;
    border: 5px solid black;
} */