.ui-tab-bar {
    overflow: hidden;
    box-sizing:border-box;

    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 48px;
    border-top: 1px solid rgba(178,178,178,1.0);
    background: #fff;

    display: flex;
    flex-wrap: nowrap;
    align-items: center;
    justify-content: center;
}