console 命令行工具 X clear

console

<div class="hairline-border">1px边框</div>

.hairline-border{
  position: absolute;
  width: 60px;
  height: 30px;
}
.hairline-border::after{
  position: absolute;
  content: '';
  width: 200%;
  height: 200%;
  left: 0;
  top: 0;
  border-radius: 8px;
  border:1px solid #999;
  transform(scale(0.5));
  transform-origin: 0 0;
}