CSS螺旋式加载

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html

css

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html

css

html,
body {
  height: 100%;
}

body {
  align-items: center;
  background-color: #212121;
  display: flex;
  justify-content: center;
}

.loader {
  position: relative;
}
.loader .dot {
  -webkit-animation-name: movement;
          animation-name: movement;
  -webkit-animation-duration: 2s;
          animation-duration: 2s;
  -webkit-animation-iteration-count: infinite;
          animation-iteration-count: infinite;
  -webkit-animation-timing-function: ease-in-out;
          animation-timing-function: ease-in-out;
  height: 10px;
  position: absolute;
  top: -10px;
  -webkit-transform: translate3d(0, -25px, 0) scale(1);
          transform: translate3d(0, -25px, 0) scale(1);
  width: 10px;
}
.loader .dot:nth-of-type(1) {
  -webkit-animation-delay: -0.1s;
          animation-delay: -0.1s;
  left: 150px;
}
.loader .dot:nth-of-type(1)::before {
  -webkit-animation-delay: -0.1s;
          animation-delay: -0.1s;
}
.loader .dot:nth-of-type(2) {
  -webkit-animation-delay: -1.2s;
          animation-delay: -1.2s;
  left: 150px;
}
.loader .dot:nth-of-type(2)::before {
  -webkit-animation-delay: -1.2s;
          animation-delay: -1.2s;
}
.loader .dot:nth-of-type(3) {
  -webkit-animation-delay: -0.3s;
          animation-delay: -0.3s;
  left: 125px;
}
.loader .dot:nth-of-type(3)::before {
  -webkit-animation-delay: -0.3s;
          animation-delay: -0.3s;
}
.loader .dot:nth-of-type(4) {
  -webkit-animation-delay: -1.4s;
          animation-delay: -1.4s;
  left: 125px;
}
.loader .dot:nth-of-type(4)::before {
  -webkit-animation-delay: -1.4s;
          animation-delay: -1.4s;
}
.loader .dot:nth-of-type(5) {
  -webkit-animation-delay: -0.5s;
          animation-delay: -0.5s;
  left: 100px;
}
.loader .dot:nth-of-type(5)::before {
  -webkit-animation-delay: -0.5s;
          animation-delay: -0.5s;
}
.loader .dot:nth-of-type(6) {
  -webkit-animation-delay: -1.6s;
          animation-delay: -1.6s;
  left: 100px;
}
.loader .dot:nth-of-type(6)::before {
  -webkit-animation-delay: -1.6s;
          animation-delay: -1.6s;
}
.loader .dot:nth-of-type(7) {
  -webkit-animation-delay: -0.7s;
          animation-delay: -0.7s;
  left: 75px;
}
.loader .dot:nth-of-type(7)::before {
  -webkit-animation-delay: -0.7s;
          animation-delay: -0.7s;
}
.loader .dot:nth-of-type(8) {
  -webkit-animation-delay: -1.8s;
          animation-delay: -1.8s;
  left: 75px;
}
.loader .dot:nth-of-type(8)::before {
  -webkit-animation-delay: -1.8s;
          animation-delay: -1.8s;
}
.loader .dot:nth-of-type(9) {
  -webkit-animation-delay: -0.9s;
          animation-delay: -0.9s;
  left: 50px;
}
.loader .dot:nth-of-type(9)::before {
  -webkit-animation-delay: -0.9s;
          animation-delay: -0.9s;
}
.loader .dot:nth-of-type(10) {
  -webkit-animation-delay: -2s;
          animation-delay: -2s;
  left: 50px;
}
.loader .dot:nth-of-type(10)::before {
  -webkit-animation-delay: -2s;
          animation-delay: -2s;
}
.loader .dot:nth-of-type(11) {
  -webkit-animation-delay: -1.1s;
          animation-delay: -1.1s;
  left: 25px;
}
.loader .dot:nth-of-type(11)::before {
  -webkit-animation-delay: -1.1s;
          animation-delay: -1.1s;
}
.loader .dot:nth-of-type(12) {
  -webkit-animation-delay: -2.2s;
          animation-delay: -2.2s;
  left: 25px;
}
.loader .dot:nth-of-type(12)::before {
  -webkit-animation-delay: -2.2s;
          animation-delay: -2.2s;
}
.loader .dot:nth-of-type(13) {
  -webkit-animation-delay: -1.3s;
          animation-delay: -1.3s;
  left: 0px;
}
.loader .dot:nth-of-type(13)::before {
  -webkit-animation-delay: -1.3s;
          animation-delay: -1.3s;
}
.loader .dot:nth-of-type(14) {
  -webkit-animation-delay: -2.4s;
          animation-delay: -2.4s;
  left: 0px;
}
.loader .dot:nth-of-type(14)::before {
  -webkit-animation-delay: -2.4s;
          animation-delay: -2.4s;
}
.loader .dot:nth-of-type(15) {
  -webkit-animation-delay: -1.5s;
          animation-delay: -1.5s;
  left: -25px;
}
.loader .dot:nth-of-type(15)::before {
  -webkit-animation-delay: -1.5s;
          animation-delay: -1.5s;
}
.loader .dot:nth-of-type(16) {
  -webkit-animation-delay: -2.6s;
          animation-delay: -2.6s;
  left: -25px;
}
.loader .dot:nth-of-type(16)::before {
  -webkit-animation-delay: -2.6s;
          animation-delay: -2.6s;
}
.loader .dot:nth-of-type(17) {
  -webkit-animation-delay: -1.7s;
          animation-delay: -1.7s;
  left: -50px;
}
.loader .dot:nth-of-type(17)::before {
  -webkit-animation-delay: -1.7s;
          animation-delay: -1.7s;
}
.loader .dot:nth-of-type(18) {
  -webkit-animation-delay: -2.8s;
          animation-delay: -2.8s;
  left: -50px;
}
.loader .dot:nth-of-type(18)::before {
  -webkit-animation-delay: -2.8s;
          animation-delay: -2.8s;
}
.loader .dot:nth-of-type(19) {
  -webkit-animation-delay: -1.9s;
          animation-delay: -1.9s;
  left: -75px;
}
.loader .dot:nth-of-type(19)::before {
  -webkit-animation-delay: -1.9s;
          animation-delay: -1.9s;
}
.loader .dot:nth-of-type(20) {
  -webkit-animation-delay: -3s;
          animation-delay: -3s;
  left: -75px;
}
.loader .dot:nth-of-type(20)::before {
  -webkit-animation-delay: -3s;
          animation-delay: -3s;
}
.loader .dot:nth-of-type(21) {
  -webkit-animation-delay: -2.1s;
          animation-delay: -2.1s;
  left: -100px;
}
.loader .dot:nth-of-type(21)::before {
  -webkit-animation-delay: -2.1s;
          animation-delay: -2.1s;
}
.loader .dot:nth-of-type(22) {
  -webkit-animation-delay: -3.2s;
          animation-delay: -3.2s;
  left: -100px;
}
.loader .dot:nth-of-type(22)::before {
  -webkit-animation-delay: -3.2s;
          animation-delay: -3.2s;
}
.loader .dot:nth-of-type(23) {
  -webkit-animation-delay: -2.3s;
          animation-delay: -2.3s;
  left: -125px;
}
.loader .dot:nth-of-type(23)::before {
  -webkit-animation-delay: -2.3s;
          animation-delay: -2.3s;
}
.loader .dot:nth-of-type(24) {
  -webkit-animation-delay: -3.4s;
          animation-delay: -3.4s;
  left: -125px;
}
.loader .dot:nth-of-type(24)::before {
  -webkit-animation-delay: -3.4s;
          animation-delay: -3.4s;
}
.loader .dot:nth-of-type(25) {
  -webkit-animation-delay: -2.5s;
          animation-delay: -2.5s;
  left: -150px;
}
.loader .dot:nth-of-type(25)::before {
  -webkit-animation-delay: -2.5s;
          animation-delay: -2.5s;
}
.loader .dot:nth-of-type(26) {
  -webkit-animation-delay: -3.6s;
          animation-delay: -3.6s;
  left: -150px;
}
.loader .dot:nth-of-type(26)::before {
  -webkit-animation-delay: -3.6s;
          animation-delay: -3.6s;
}
.loader .dot::before {
  -webkit-animation-name: size-opacity;
          animation-name: size-opacity;
  -webkit-animation-duration: 2s;
          animation-duration: 2s;
  -webkit-animation-iteration-count: infinite;
          animation-iteration-count: infinite;
  -webkit-animation-timing-function: ease;
          animation-timing-function: ease;
  background: white;
  border-radius: 50%;
  content: '';
  display: block;
  height: 100%;
  width: 100%;
}
.loader .dot:nth-of-type(even)::before {
  background-color: #ff47aa;
  box-shadow: inset 0 0 4px #ff1492;
}

@Keyframes movement {
  0% {
    -webkit-transform: translate3d(0, -25px, 0);
            transform: translate3d(0, -25px, 0);
    z-index: 0;
  }
  50% {
    -webkit-transform: translate3d(0, 25px, 0);
            transform: translate3d(0, 25px, 0);
    z-index: 10;
  }
  100% {
    -webkit-transform: translate3d(0, -25px, 0);
            transform: translate3d(0, -25px, 0);
    z-index: -5;
  }
}
@Keyframes size-opacity {
  0% {
    opacity: 1;
    -webkit-transform: scale(1);
            transform: scale(1);
  }
  25% {
    -webkit-transform: scale(1.5);
            transform: scale(1.5);
  }
  50% {
    opacity: 1;
  }
  75% {
    opacity: .35;
    -webkit-transform: scale(0.5);
            transform: scale(0.5);
  }
  100% {
    opacity: 1;
    -webkit-transform: scale(1);
            transform: scale(1);
  }
}

JavaScript

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