css 绘图——钉子

<template>
  <div class="nail"></div>
</template>
<style scoped>/*使用before伪元素画圆*/
.nail:before {
  display: block;
  content: "钉子";
  height: 50px;
  width: 50px;
  border-radius: 50%;
  background-color: black;
  color: white;
  font-weight: bold;
  text-align: center;
  line-height: 50px;
}
/*使用after伪元素画三角*/
.nail:after {
  display: block;
  content: "";
  width: 0;
  height: 0;
  border: 25px solid transparent;
  border-top: 50px solid black;
  margin-top: -20px;
}</style>