antd spin css 实现

 <span class="ant-spin-dot ant-spin-dot-spin">
    <i></i><i></i><i></i><i></i>
  </span>
.ant-spin-dot {
  position: relative;
  display: inline-block;
  font-size: 20px;
  width: 20px;
  height: 20px;
}
.ant-spin-dot-spin{
  transform: rotate(45deg);
  animation: antRotate 1.2s infinite linear;
}
 
.ant-spin-dot i {
  width: 9px;
  height: 9px;
  border-radius: 100%;
  background-color: #1890ff;
  transform: scale(0.75);
  display: block;
  position: absolute;
  opacity: 0.3;
  animation: antSpinMove 1s infinite linear alternate;
  transform-origin: 50% 50%;
  &:nth-child(1) {
    left: 0;
    top: 0;
  }
  &:nth-child(2) {
    right: 0;
    top: 0;
    animation-delay: 0.4s;
  }
  &:nth-child(3) {
    right: 0;
    bottom: 0;
    animation-delay: 0.8s;
  }
  &:nth-child(4) {
    left: 0;
    bottom: 0;
    animation-delay: 1.2s;
  }
}
@keyframes antSpinMove {
  to {
    opacity: 1;
  }
}
@keyframes antRotate {
  to {
    transform: rotate(405deg);
  }
}
 

文章转自 https://blog.csdn.net/candy_home/article/details/81540247