body {
    margin-top: 5rem;
}

.gantt-chart td {
    width: 2rem;
    max-width: 2rem;
    text-overflow: ellipsis;
    white-space: nowrap;
}

body {
    margin-top: 5rem;
}

.gantt-chart td {
    width: 2rem;
    max-width: 2rem;
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow: hidden;
}

Add overflow hidden to cells
Add overflow hidden to cells
