taro/src/custom-tab-bar/index.scss

//未选中 18 40%
//选中 20 100%

.tabbar-item{
    color: rgba($color: #ffffff, $alpha: 0.4);
    font-size: 36px;
    // padding-top: 25px;
    display: flex;
    flex: 1;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

.tabbar-item-sel{
    color: #ffffff;
    font-size: 40px;
    font-weight: bold;
}