web-apps/apps/common/main/resources/less/tabbar.less

.nav-tabs {
    white-space: nowrap;
    overflow: hidden;

    > li {
        float: none;
        display: inline;

        &.active {
            > a, > a:hover, > a:focus {
                background-color: #fff;
                color: #000;
                border-color: #fff;
                cursor: pointer;
            }
        }

        &:not(.dragged) {
            transition: left .2s;
        }

        > a {
            display: inline;
            background-color: #7a7a7a;
            color: #fff;

            padding-top: 0;
            padding-bottom: 0;
            white-space: pre-wrap;

            &:hover, &:focus {
                background-color: #7a7a7a;
                border-color: #7a7a7a;
                cursor: pointer;
            }
        }
    }

    &.bottom {
        border-bottom: none;
        border-top: none;

        > li {
            vertical-align: middle;

            > a {
                padding-bottom: 1px;
                border-radius: 0 0 4px 4px;
            }
        }
    }
}