改变ant-tabs的样式

通过ant-tabs得微元素改变下划线样式

 .ant-tabs {
    overflow: visible;
    }
    .ant-tabs-nav-container{
      overflow: visible;
    }
 .ant-tabs-ink-bar {
  height: 0;
    position: relative;
}
 .ant-tabs-ink-bar:after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: -1px;
    margin: 0 auto;
    width: 24px;
    height: 4px;
    background: #fff;
    border-radius: 2px;
}