CSS3 脉冲效果

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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>CSS3-闪光-效果</title>
<style>
    .element{
      color: #f35626;
      background-image: -webkit-linear-gradient(92deg,#f35626,#feab3a);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      -webkit-animation: hue 60s infinite linear;
      margin-bottom: 1.5rem;
      font-size: 3rem;
      font-weight: 100;
      line-height: 1;
      letter-spacing: -.05em;
    }
    .animated {
      -webkit-animation-duration: 3s;
      animation-duration: 3s;
      -webkit-animation-fill-mode: both;
      animation-fill-mode: both;
    }
@-webkit-keyframes pulse {
  from {
    -webkit-transform: scale3d(1, 1, 1);
    transform: scale3d(1, 1, 1);
  }

  50% {
    -webkit-transform: scale3d(1.05, 1.05, 1.05);
    transform: scale3d(1.05, 1.05, 1.05);
  }

  to {
    -webkit-transform: scale3d(1, 1, 1);
    transform: scale3d(1, 1, 1);
  }
}

@keyframes pulse {
  from {
    -webkit-transform: scale3d(1, 1, 1);
    transform: scale3d(1, 1, 1);
  }

  50% {
    -webkit-transform: scale3d(1.05, 1.05, 1.05);
    transform: scale3d(1.05, 1.05, 1.05);
  }

  to {
    -webkit-transform: scale3d(1, 1, 1);
    transform: scale3d(1, 1, 1);
  }
}

.pulse {
  -webkit-animation-name: pulse;
  animation-name: pulse;
}
</style>
</head>
<body>
    <div class="element animated pulse">pulse</div>
</body>
</html>
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