加载动画

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html

css

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html

css

html {
  height: 100%;
}

body {
  background: #222;
  height: 100%;
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
  -webkit-justify-content: center;
      -ms-flex-pack: center;
          justify-content: center;
  -webkit-box-align: center;
  -webkit-align-items: center;
      -ms-flex-align: center;
          align-items: center;
}

.preload-1 {
  position: relative;
  margin-bottom: 40px;
}
.preload-1 span {
  display: block;
  position: absolute;
  bottom: 0px;
  width: 9px;
  height: 5px;
  background: coral;
  -webkit-animation: preload-1 1.5s infinite ease-in-out;
          animation: preload-1 1.5s infinite ease-in-out;
}
.preload-1 span:nth-child(2) {
  left: 11px;
  -webkit-animation-delay: .2s;
          animation-delay: .2s;
}
.preload-1 span:nth-child(3) {
  left: 22px;
  -webkit-animation-delay: .4s;
          animation-delay: .4s;
}
.preload-1 span:nth-child(4) {
  left: 33px;
  -webkit-animation-delay: .6s;
          animation-delay: .6s;
}
.preload-1 span:nth-child(5) {
  left: 44px;
  -webkit-animation-delay: .8s;
          animation-delay: .8s;
}

@-webkit-keyframes preload-1 {
  0% {
    height: 5px;
    -webkit-transform: translateY(0px);
            transform: translateY(0px);
    background: coral;
  }
  25% {
    height: 30px;
    -webkit-transform: translateY(15px);
            transform: translateY(15px);
    background: cornflowerblue;
  }
  50% {
    height: 5px;
    -webkit-transform: translateY(0px);
            transform: translateY(0px);
    background: cornflowerblue;
  }
  100% {
    height: 5px;
    -webkit-transform: translateY(0px);
            transform: translateY(0px);
    background: coral;
  }
}

@keyframes preload-1 {
  0% {
    height: 5px;
    -webkit-transform: translateY(0px);
            transform: translateY(0px);
    background: coral;
  }
  25% {
    height: 30px;
    -webkit-transform: translateY(15px);
            transform: translateY(15px);
    background: cornflowerblue;
  }
  50% {
    height: 5px;
    -webkit-transform: translateY(0px);
            transform: translateY(0px);
    background: cornflowerblue;
  }
  100% {
    height: 5px;
    -webkit-transform: translateY(0px);
            transform: translateY(0px);
    background: coral;
  }
}
.preload-2 {
  position: relative;
  left: 50%;
  margin-bottom: 40px;
  width: 40px;
  height: 40px;
}
.preload-2 span {
  position: absolute;
  display: block;
  bottom: 0px;
  width: 20px;
  height: 20px;
  background: #9b59b6;
}
.preload-2 span:nth-child(1) {
  -webkit-animation: preload-2-1 1.5s infinite ease-in-out;
          animation: preload-2-1 1.5s infinite ease-in-out;
}
.preload-2 span:nth-child(2) {
  left: 20px;
  -webkit-animation: preload-2-2 1.5s infinite ease-in-out;
          animation: preload-2-2 1.5s infinite ease-in-out;
}
.preload-2 span:nth-child(3) {
  top: 0px;
  -webkit-animation: preload-2-3 1.5s infinite ease-in-out;
          animation: preload-2-3 1.5s infinite ease-in-out;
}
.preload-2 span:nth-child(4) {
  top: 0px;
  left: 20px;
  -webkit-animation: preload-2-4 1.5s infinite ease-in-out;
          animation: preload-2-4 1.5s infinite ease-in-out;
}

@-webkit-keyframes preload-2-1 {
  0% {
    -webkit-transform: translateX(0) translateY(0) rotate(0);
            transform: translateX(0) translateY(0) rotate(0);
    border-radius: 0;
  }
  50% {
    -webkit-transform: translateX(-20px) translateY(-10px) rotate(-180deg);
            transform: translateX(-20px) translateY(-10px) rotate(-180deg);
    border-radius: 50%;
    background: #3498db;
  }
  80% {
    -webkit-transform: translateX(0) translateY(0) rotate(-360deg);
            transform: translateX(0) translateY(0) rotate(-360deg);
    border-radius: 0;
  }
  100% {
    -webkit-transform: translateX(0) translateY(0) rotate(-360deg);
            transform: translateX(0) translateY(0) rotate(-360deg);
    border-radius: 0;
  }
}

@keyframes preload-2-1 {
  0% {
    -webkit-transform: translateX(0) translateY(0) rotate(0);
            transform: translateX(0) translateY(0) rotate(0);
    border-radius: 0;
  }
  50% {
    -webkit-transform: translateX(-20px) translateY(-10px) rotate(-180deg);
            transform: translateX(-20px) translateY(-10px) rotate(-180deg);
    border-radius: 50%;
    background: #3498db;
  }
  80% {
    -webkit-transform: translateX(0) translateY(0) rotate(-360deg);
            transform: translateX(0) translateY(0) rotate(-360deg);
    border-radius: 0;
  }
  100% {
    -webkit-transform: translateX(0) translateY(0) rotate(-360deg);
            transform: translateX(0) translateY(0) rotate(-360deg);
    border-radius: 0;
  }
}
@-webkit-keyframes preload-2-2 {
  0% {
    -webkit-transform: translateX(0px) translateY(0px) rotate(0deg);
            transform: translateX(0px) translateY(0px) rotate(0deg);
    border-radius: 0;
  }
  50% {
    -webkit-transform: translateX(20px) translateY(-10px) rotate(180deg);
            transform: translateX(20px) translateY(-10px) rotate(180deg);
    border-radius: 50%;
    background: #f1c40f;
  }
  80% {
    -webkit-transform: translateX(0) translateY(0) rotate(360deg);
            transform: translateX(0) translateY(0) rotate(360deg);
    border-radius: 0;
  }
  100% {
    -webkit-transform: translateX(0) translateY(0) rotate(360deg);
            transform: translateX(0) translateY(0) rotate(360deg);
    border-radius: 0;
  }
}
@keyframes preload-2-2 {
  0% {
    -webkit-transform: translateX(0px) translateY(0px) rotate(0deg);
            transform: translateX(0px) translateY(0px) rotate(0deg);
    border-radius: 0;
  }
  50% {
    -webkit-transform: translateX(20px) translateY(-10px) rotate(180deg);
            transform: translateX(20px) translateY(-10px) rotate(180deg);
    border-radius: 50%;
    background: #f1c40f;
  }
  80% {
    -webkit-transform: translateX(0) translateY(0) rotate(360deg);
            transform: translateX(0) translateY(0) rotate(360deg);
    border-radius: 0;
  }
  100% {
    -webkit-transform: translateX(0) translateY(0) rotate(360deg);
            transform: translateX(0) translateY(0) rotate(360deg);
    border-radius: 0;
  }
}
@-webkit-keyframes preload-2-3 {
  0% {
    -webkit-transform: translateX(0px) translateY(0px) rotate(0deg);
            transform: translateX(0px) translateY(0px) rotate(0deg);
    border-radius: 0;
  }
  50% {
    -webkit-transform: translateX(-20px) translateY(10px) rotate(-180deg);
            transform: translateX(-20px) translateY(10px) rotate(-180deg);
    border-radius: 50%;
    background: #2ecc71;
  }
  80% {
    -webkit-transform: translateX(0) translateY(0) rotate(-360deg);
            transform: translateX(0) translateY(0) rotate(-360deg);
    border-radius: 0;
  }
  100% {
    -webkit-transform: translateX(0) translateY(0) rotate(-360deg);
            transform: translateX(0) translateY(0) rotate(-360deg);
    border-radius: 0;
  }
}
@keyframes preload-2-3 {
  0% {
    -webkit-transform: translateX(0px) translateY(0px) rotate(0deg);
            transform: translateX(0px) translateY(0px) rotate(0deg);
    border-radius: 0;
  }
  50% {
    -webkit-transform: translateX(-20px) translateY(10px) rotate(-180deg);
            transform: translateX(-20px) translateY(10px) rotate(-180deg);
    border-radius: 50%;
    background: #2ecc71;
  }
  80% {
    -webkit-transform: translateX(0) translateY(0) rotate(-360deg);
            transform: translateX(0) translateY(0) rotate(-360deg);
    border-radius: 0;
  }
  100% {
    -webkit-transform: translateX(0) translateY(0) rotate(-360deg);
            transform: translateX(0) translateY(0) rotate(-360deg);
    border-radius: 0;
  }
}
@-webkit-keyframes preload-2-4 {
  0% {
    -webkit-transform: translateX(0px) translateY(0px) rotate(0deg);
            transform: translateX(0px) translateY(0px) rotate(0deg);
    border-radius: 0;
  }
  50% {
    -webkit-transform: translateX(20px) translateY(10px) rotate(180deg);
            transform: translateX(20px) translateY(10px) rotate(180deg);
    border-radius: 50%;
    background: #e74c3c;
  }
  80% {
    -webkit-transform: translateX(0) translateY(0) rotate(360deg);
            transform: translateX(0) translateY(0) rotate(360deg);
    border-radius: 0;
  }
  100% {
    -webkit-transform: translateX(0) translateY(0) rotate(360deg);
            transform: translateX(0) translateY(0) rotate(360deg);
    border-radius: 0;
  }
}
@keyframes preload-2-4 {
  0% {
    -webkit-transform: translateX(0px) translateY(0px) rotate(0deg);
            transform: translateX(0px) translateY(0px) rotate(0deg);
    border-radius: 0;
  }
  50% {
    -webkit-transform: translateX(20px) translateY(10px) rotate(180deg);
            transform: translateX(20px) translateY(10px) rotate(180deg);
    border-radius: 50%;
    background: #e74c3c;
  }
  80% {
    -webkit-transform: translateX(0) translateY(0) rotate(360deg);
            transform: translateX(0) translateY(0) rotate(360deg);
    border-radius: 0;
  }
  100% {
    -webkit-transform: translateX(0) translateY(0) rotate(360deg);
            transform: translateX(0) translateY(0) rotate(360deg);
    border-radius: 0;
  }
}
.preload-3 {
  position: relative;
  margin-bottom: 100px;
}
.preload-3:before, .preload-3:after {
  position: absolute;
  content: '';
  width: 20px;
  height: 20px;
  border-radius: 50%;
}
.preload-3:before {
  background: orange;
  -webkit-animation: preload-3-1 1.5s infinite ease-in-out;
          animation: preload-3-1 1.5s infinite ease-in-out;
}
.preload-3:after {
  background: yellow;
  left: 22px;
  -webkit-animation: preload-3-2 1.5s infinite ease-in-out;
          animation: preload-3-2 1.5s infinite ease-in-out;
}

@-webkit-keyframes preload-3-1 {
  0%, 100% {
    -webkit-transform: translateX(0) rotate(0);
            transform: translateX(0) rotate(0);
  }
  50% {
    -webkit-transform: translateX(50px) scale(1.2) rotate(260deg);
            transform: translateX(50px) scale(1.2) rotate(260deg);
    border-radius: 0;
  }
}

@keyframes preload-3-1 {
  0%, 100% {
    -webkit-transform: translateX(0) rotate(0);
            transform: translateX(0) rotate(0);
  }
  50% {
    -webkit-transform: translateX(50px) scale(1.2) rotate(260deg);
            transform: translateX(50px) scale(1.2) rotate(260deg);
    border-radius: 0;
  }
}
@-webkit-keyframes preload-3-2 {
  0%, 100% {
    -webkit-transform: translateX(0) rotate(0);
            transform: translateX(0) rotate(0);
  }
  50% {
    -webkit-transform: translateX(-50px) scale(1.2) rotate(-260deg);
            transform: translateX(-50px) scale(1.2) rotate(-260deg);
    border-radius: 0;
  }
}
@keyframes preload-3-2 {
  0%, 100% {
    -webkit-transform: translateX(0) rotate(0);
            transform: translateX(0) rotate(0);
  }
  50% {
    -webkit-transform: translateX(-50px) scale(1.2) rotate(-260deg);
            transform: translateX(-50px) scale(1.2) rotate(-260deg);
    border-radius: 0;
  }
}
.preload-4 {
  position: relative;
  margin-bottom: 100px;
}
.preload-4 span {
  position: absolute;
  width: 20px;
  height: 20px;
  background: dodgerblue;
  border-radius: 50%;
  -webkit-animation: preload-4 1s infinite ease-in-out;
          animation: preload-4 1s infinite ease-in-out;
}
.preload-4 span:nth-child(2) {
  left: 20px;
  -webkit-animation-delay: .2s;
          animation-delay: .2s;
}
.preload-4 span:nth-child(3) {
  left: 40px;
  -webkit-animation-delay: .4s;
          animation-delay: .4s;
}
.preload-4 span:nth-child(4) {
  left: 60px;
  -webkit-animation-delay: .6s;
          animation-delay: .6s;
}
.preload-4 span:nth-child(5) {
  left: 80px;
  -webkit-animation-delay: .8s;
          animation-delay: .8s;
}

@-webkit-keyframes preload-4 {
  0%, 100% {
    opacity: 0.3;
    -webkit-transform: translateY(0);
            transform: translateY(0);
    box-shadow: 0 0 3px rgba(255, 255, 255, 0.1);
  }
  50% {
    opacity: 1;
    -webkit-transform: translateY(-10px);
            transform: translateY(-10px);
    box-shadow: 0 20px 3px rgba(255, 255, 255, 0.05);
  }
}

@keyframes preload-4 {
  0%, 100% {
    opacity: 0.3;
    -webkit-transform: translateY(0);
            transform: translateY(0);
    box-shadow: 0 0 3px rgba(255, 255, 255, 0.1);
  }
  50% {
    opacity: 1;
    -webkit-transform: translateY(-10px);
            transform: translateY(-10px);
    box-shadow: 0 20px 3px rgba(255, 255, 255, 0.05);
  }
}
.preload-5 {
  position: relative;
  width: 30px;
  height: 30px;
  margin-top: 200px;
  border-radius: 50%;
  background: peachpuff;
  -webkit-animation: preload-5 1.5s infinite linear;
          animation: preload-5 1.5s infinite linear;
}
.preload-5:after {
  content: '';
  position: absolute;
  width: 50px;
  height: 50px;
  border-top: 10px solid coral;
  border-bottom: 10px solid coral;
  border-left: 10px solid transparent;
  border-right: 10px solid transparent;
  border-radius: 50%;
  top: -20px;
  left: -20px;
}

@-webkit-keyframes preload-5 {
  0% {
    -webkit-transform: rotate(0);
            transform: rotate(0);
  }
  50% {
    -webkit-transform: rotate(180deg);
            transform: rotate(180deg);
  }
  100% {
    -webkit-transform: rotate(360deg);
            transform: rotate(360deg);
  }
}

@keyframes preload-5 {
  0% {
    -webkit-transform: rotate(0);
            transform: rotate(0);
  }
  50% {
    -webkit-transform: rotate(180deg);
            transform: rotate(180deg);
  }
  100% {
    -webkit-transform: rotate(360deg);
            transform: rotate(360deg);
  }
}

JavaScript

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