.grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(5, auto);
    gap: 5px;
    padding: 5px;
}

.cell {
    background-color: #1c4966;
    border: 1px solid #666;
    padding-top: 12px;
    padding-bottom: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.cal-header{
    padding: 12px;
    margin-top: 10px;
    font-size: 25px;
    background: #555;
}

.two-rows {
    grid-row: span 2;
}

.three-rows {
    grid-row: span 3;
}

.two-cols{
    grid-column: span 2;
}

@media screen and (max-width: 650px) {
    .cal-inv-sm {
        display: none;
    }
}