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扩散圆效果

怡然

373字约1分钟

animateCSS

2025-06-06

扩散圆

<div class="creating-video">
  <div class="container">
    <div class="dot"></div>
    <div class="pulse"></div>
    <div class="pulse1"></div>
  </div>
<div>


@keyframes warn {
  0% {
    transform: scale(0.1);
    -webkit-transform: scale(0.1);
    opacity: 0.0;
  }

  25% {
    transform: scale(0.25);
    -webkit-transform: scale(0.25);
    opacity: 0.1;
  }

  50% {
    transform: scale(0.5);
    -webkit-transform: scale(0.5);
    opacity: 0.3;
  }

  75% {
    transform: scale(0.6);
    -webkit-transform: scale(0.6);
    opacity: 0.5;
  }

  100% {
    transform: scale(0.7);
    -webkit-transform: scale(0.7);
    opacity: 0.0;
  }
}

@keyframes warn1 {
  0% {
    transform: scale(0.3);
    -webkit-transform: scale(0.3);
    opacity: 0.0;
  }

  25% {
    transform: scale(0.3);
    -webkit-transform: scale(0.3);
    opacity: 0.1;
  }

  50% {
    transform: scale(0.3);
    -webkit-transform: scale(0.3);
    opacity: 0.3;
  }

  75% {
    transform: scale(0.4);
    -webkit-transform: scale(0.4);
    opacity: 0.5;
  }

  100% {
    transform: scale(0.6);
    -webkit-transform: scale(0.6);
    opacity: 0.0;
  }
}

.container {
  position: relative;
  width: 100%;
  height: 300px;
}

.dot {
  position: absolute;
  margin: 0 auto;
  width: 150px;
  height: 150px;
  left: calc((100% - 150px) / 2);
  top: 80px;
  -webkit-border-radius: 50%;
  -moz-border-radius: 50%;
  background: rgba(189, 49, 36, 0.9);
  box-shadow: 1px 1px 5px #BD3124, 1px 1px 10px #BD3124, 1px 1px 15px #BD3124;
  border-radius: 50%;
  z-index: 2;
  color: #fff;
  text-align: center;
  line-height: 150px;
  font-size: 20px;
}

.pulse {
  position: absolute;
  width: 320px;
  height: 320px;
  left: calc((100% - 330px)/2);
  top: -10px;
  border: 6px solid rgba(222, 134, 143, 0.7);
  -webkit-border-radius: 50%;
  -moz-border-radius: 50%;
  border-radius: 50%;
  z-index: 1;
  opacity: 0;
  -webkit-animation: warn 2s linear;
  -moz-animation: warn 2s linear;
  animation: warn 2s linear;
  -webkit-animation-iteration-count: infinite;
  -moz-animation-iteration-count: infinite;
  animation-iteration-count: infinite;
  box-shadow: 1px 1px 30px rgba(222, 134, 143, 0.8);
}

.pulse1 {
  position: absolute;
  width: 320px;
  height: 320px;
  left: calc((100% - 330px)/2);
  top: -10px;
  border: 6px solid rgba(222, 134, 143, 0.9);
  -webkit-border-radius: 50%;
  -moz-border-radius: 50%;
  border-radius: 50%;
  z-index: 1;
  opacity: 0;
  -webkit-animation: warn1 2s linear;
  -moz-animation: warn1 2s linear;
  animation: warn1 2s linear;
  -webkit-animation-iteration-count: infinite;
  -moz-animation-iteration-count: infinite;
  animation-iteration-count: infinite;
  box-shadow: 1px 1px 30px rgba(222, 134, 143, 0.9);
}