CSS 加载动画

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html

css

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html

css

body{
   background-color:#E56262;
}
.frame {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 400px;
  height: 400px;
  margin-top: -200px;
  margin-left: -200px;
  border-radius: 2px;
  background: #E56262;
  color: #fff;
}

.center {
  position: absolute;
  width: 220px;
  height: 220px;
  top: 90px;
  left: 90px;
}

.dot-1 {
  position: absolute;
  z-index: 3;
  width: 30px;
  height: 30px;
  top: 95px;
  left: 95px;
  background: #fff;
  border-radius: 50%;
  -webkit-animation-fill-mode: both;
          animation-fill-mode: both;
  -webkit-animation: jump-jump-1 2s cubic-bezier(0.21, 0.98, 0.6, 0.99) infinite alternate;
          animation: jump-jump-1 2s cubic-bezier(0.21, 0.98, 0.6, 0.99) infinite alternate;
}

.dot-2 {
  position: absolute;
  z-index: 2;
  width: 60px;
  height: 60px;
  top: 80px;
  left: 80px;
  background: #fff;
  border-radius: 50%;
  -webkit-animation-fill-mode: both;
          animation-fill-mode: both;
  -webkit-animation: jump-jump-2 2s cubic-bezier(0.21, 0.98, 0.6, 0.99) infinite alternate;
          animation: jump-jump-2 2s cubic-bezier(0.21, 0.98, 0.6, 0.99) infinite alternate;
}

.dot-3 {
  position: absolute;
  z-index: 1;
  width: 90px;
  height: 90px;
  top: 65px;
  left: 65px;
  background: #fff;
  border-radius: 50%;
  -webkit-animation-fill-mode: both;
          animation-fill-mode: both;
  -webkit-animation: jump-jump-3 2s cubic-bezier(0.21, 0.98, 0.6, 0.99) infinite alternate;
          animation: jump-jump-3 2s cubic-bezier(0.21, 0.98, 0.6, 0.99) infinite alternate;
}

@-webkit-keyframes jump-jump-1 {
  0%, 70% {
    box-shadow: 2px 2px 3px 2px rgba(0, 0, 0, 0.2);
    -webkit-transform: scale(0);
            transform: scale(0);
  }
  100% {
    box-shadow: 10px 10px 15px 0 rgba(0, 0, 0, 0.3);
    -webkit-transform: scale(1);
            transform: scale(1);
  }
}

@keyframes jump-jump-1 {
  0%, 70% {
    box-shadow: 2px 2px 3px 2px rgba(0, 0, 0, 0.2);
    -webkit-transform: scale(0);
            transform: scale(0);
  }
  100% {
    box-shadow: 10px 10px 15px 0 rgba(0, 0, 0, 0.3);
    -webkit-transform: scale(1);
            transform: scale(1);
  }
}
@-webkit-keyframes jump-jump-2 {
  0%, 40% {
    box-shadow: 2px 2px 3px 2px rgba(0, 0, 0, 0.2);
    -webkit-transform: scale(0);
            transform: scale(0);
  }
  100% {
    box-shadow: 10px 10px 15px 0 rgba(0, 0, 0, 0.3);
    -webkit-transform: scale(1);
            transform: scale(1);
  }
}
@keyframes jump-jump-2 {
  0%, 40% {
    box-shadow: 2px 2px 3px 2px rgba(0, 0, 0, 0.2);
    -webkit-transform: scale(0);
            transform: scale(0);
  }
  100% {
    box-shadow: 10px 10px 15px 0 rgba(0, 0, 0, 0.3);
    -webkit-transform: scale(1);
            transform: scale(1);
  }
}
@-webkit-keyframes jump-jump-3 {
  0%, 10% {
    box-shadow: 2px 2px 3px 2px rgba(0, 0, 0, 0.2);
    -webkit-transform: scale(0);
            transform: scale(0);
  }
  100% {
    box-shadow: 10px 10px 15px 0 rgba(0, 0, 0, 0.3);
    -webkit-transform: scale(1);
            transform: scale(1);
  }
}
@keyframes jump-jump-3 {
  0%, 10% {
    box-shadow: 2px 2px 3px 2px rgba(0, 0, 0, 0.2);
    -webkit-transform: scale(0);
            transform: scale(0);
  }
  100% {
    box-shadow: 10px 10px 15px 0 rgba(0, 0, 0, 0.3);
    -webkit-transform: scale(1);
            transform: scale(1);
  }
}

JavaScript

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