较细、极细、细边框线布局样式css

最后一个li不加边框

ul .li:not(:last-child)::after {
    position: absolute;
    box-sizing: border-box;
    content: ' ';
    pointer-events: none;
    right: 0;
    bottom: 0;
    left: 16px;
    border-bottom: 1px solid #ebedf0;
    -webkit-transform: scaleY(.5);
    transform: scaleY(.5);
}