.form-fill-height {
    display: flex;
    flex: 1 1 0;
    flex-direction: column;
    min-width: 0;
    min-height: 0;
}

.tabs-fill-height:not(.tabs-left):not(.tabs-right) {
    display: flex;
    flex: 1 1 0;
    flex-direction: column;
    min-width: 0;
    min-height: 0;
}

    .tabs-fill-height:not(.tabs-left):not(.tabs-right) > .nav {
        flex: 0 0 auto;
    }

    .tabs-fill-height:not(.tabs-left):not(.tabs-right) > .tab-content {
        display: flex;
        flex: 1 1 0;
        flex-direction: column;
        min-width: 0;
        min-height: 0;
    }

        .tabs-fill-height:not(.tabs-left):not(.tabs-right) > .tab-content > .tab-fill-height.active {
            display: flex;
            flex: 1 1 0;
            flex-direction: column;
            min-width: 0;
            min-height: 0;
            overflow: hidden;
        }