.ccnps-crossmath-solution {
    border-collapse: collapse;
    margin: 0 auto;
    width: auto;
}

.ccnps-crossmath-solution td {
    border: 1px solid #016994;
    text-align: center;
    width: 2em;
    height: 2em;
    padding: 0;
    vertical-align: middle;
}

.ccnps-crossmath-solution td.solid {
    background-color: #016994;
}

.ccnps-crossmath-solution td.no-border {
    border: none;
}

.ccnps-crossmath-solution td.operator,
.ccnps-crossmath-solution td.target{
    color: #016994;
    font-weight: bold;
}