html+css+js实现Badge 标记
实现效果：
代码实现：
<!DOCTYPE html>
<html lang="en">
<head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>Badge 标记</title><link rel="stylesheet" href="./font_4689118_hfv5befzhmw/iconfont.css"><style>*{margin: 0;padding: 0;box-sizing: border-box;}ul{list-style: none;}.source{margin: 50px auto;width: 870px;height: 80px;padding: 24px;border: 1px solid #ecf5ff;}.content{display: flex;}.content .badge{margin-right: 40px;position: relative;}.badge button{cursor: pointer;width: 55px;height: 30px;color: #606266;border: 1px solid #c0c4cc;background-color: #fff;border-radius: 2px;}button:hover{border: 1px solid rgba(64, 158, 255, 0.1);background-color:rgba(64, 158, 255, 0.1);color:#409eff ;}.badge span{position: absolute;left: 45px;top: -10px;display: inline-block;width: 20px;height: 20px;line-height: 20px;border-radius: 50%;font-size: 12px;color: #fff;text-align: center;background-color: #f56c6c;}.badge:nth-child(1) span{width: 35px;border-radius: 10px;}.badge:nth-child(3) span{background-color: #409eff;}.badge:nth-child(4) span{background-color: #e6a23c;}.dropdown{position: relative;}.dropdown .header{cursor: pointer;height: 30px;line-height: 30px;font-size: 14px;color:#409eff ;}.footer{position: absolute;right: 0;padding: 12px 0;width: 100px;border: 1px solid #c0c4cc;border-radius: 3px;color: #606266;transition: all 0.3s ease;transform-origin: top;}.footer li{height: 38px;line-height: 38px;text-align: center;}.footer li:hover{cursor: pointer;background-color:rgba(64, 158, 255, 0.1);color:#409eff ;}.footer li span{display: inline-block;width: 18px;height: 18px;line-height: 18px;border-radius: 50%;font-size: 12px;color: #fff;text-align: center;background-color: #f56c6c;margin-left: 5px;}.footer li:nth-child(1) span{width:25px;border-radius: 9px;}.footer.hide{transform: scaleY(0); /* Hide the footer */}</style>
</head>
<body><div class="source"><div class="content"><div class="badge"><button>评论</button><span>12</span></div><div class="badge"><button>回复</button><span>3</span></div><div class="badge"><button>评论</button><span>1</span></div><div class="badge"><button>回复</button><span>2</span></div><div class="dropdown"><div class="header"><span>点我查看</span><span class="iconfont icon-jiantou"></span></div><ul class="footer hide"><li>评论<span>12</span></li><li>回复<span>3</span></li></ul></div></div></div><script>document.querySelector('.dropdown .header').addEventListener('click',function(){const footer = this.nextElementSibling;footer.classList.toggle('hide')})</script>
</body>
</html>