vant-weapp/dist/badge/index.wxss

.van-badge{position:relative}.van-badge__text{position:absolute;top:-.8em;right:0;height:1.6em;min-width:1.6em;line-height:1.6;padding:0 .4em;font-size:20px;border-radius:.8em;background:#f44;color:#fff;text-align:center;white-space:nowrap;-webkit-transform:translateX(50%) scale(.5);transform:translateX(50%) scale(.5);-webkit-transform-origin:center;transform-origin:center;z-index:10;box-shadow:0 0 0 2px #fff;box-sizing:border-box}