.num-box { position: relative; overflow: hidden; } .num-box::before { position: absolute; top: 0; left: 0; box-sizing: border-box; width: 200%; height: 200%; border: 0.01rem solid #ff60a9; transform: scale(0.5) translate(-50%, -50%); content: ‘‘; }
使用scale(0.5)来解决px小的时候的展示问题
原文：https://www.cnblogs.com/wangxirui/p/15184231.html