.kanban {
    display: flex;
    flex-direction: column;
    height: $main-height;
    max-height: $main-height;
    header {
        min-height: 70px;
    }
    .kanban-settings {
        float: right;
    }
    .burndown-container {
        display: none;
    }
}

.kanban {
    display: flex;
    flex-direction: column;
    height: $main-height;
    max-height: $main-height;
    max-width: calc(100vw - 50px);
    header {
        min-height: 70px;
    }
    .kanban-settings {
        float: right;
    }
    .burndown-container {
        display: none;
    }
}

Set max width to avoid scroll on Firefox
Set max width to avoid scroll on Firefox
