四个小圆点一直旋转 ~~~ // 父标签 animation: antRotate 1.2s infinite linear; // 子标签 animation: antSpin 1s infinite linear; @keyframe antSpin { to { opacity: 1 } } @keyframe antRotate { to { transform: rotate(405) } } // animation-delay: 逐个延迟0.4s ~~~