[javascript]圆形动画集N°2

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html

css

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html

<h1>CIRCLE ANIMATIONS COLLECTION N°2</h1>
<div class="container">
  <div class="animation-container">
    <div class="animation-title">Radial Pulse</div>
    <div id="radial-pulse" class="circle-container"></div>
  </div>

<div class="animation-container">
    <div class="animation-title">Orbital Pulse</div>
    <div id="orbital-pulse" class="circle-container"></div>
  </div>

<div class="animation-container">
    <div class="animation-title">Pendulum Wave</div>
    <div id="pendulum-wave" class="circle-container"></div>
  </div>

<div class="animation-container">
    <div class="animation-title">Pulse Wave</div>
    <div id="pulse-wave" class="circle-container"></div>
  </div>

<div class="animation-container">
    <div class="animation-title">Concentric Rings</div>
    <div id="concentric-rings" class="circle-container"></div>
  </div>

<div class="animation-container">
    <div class="animation-title">Sequential Pulse</div>
    <div id="sequential-pulse" class="circle-container"></div>
  </div>

<div class="animation-container">
    <div class="animation-title">Oscillating Dots</div>
    <div id="oscillating-dots" class="circle-container"></div>
  </div>

<div class="animation-container">
    <div class="animation-title">Pulsing Grid</div>
    <div id="pulsing-grid" class="circle-container"></div>
  </div>

<div class="animation-container">
    <div class="animation-title">Spiral Galaxy</div>
    <div id="spiral-galaxy" class="circle-container"></div>
  </div>
</div>

css

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background: #000;
  color: #f0f0f0;
  font-family: "TheGoodMonolith", monospace;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 20px;
}

h1 {
  margin-bottom: 30px;
  font-size: 24px;
  letter-spacing: 1px;
  text-align: center;
}

.container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  max-width: 1000px;
  margin: 0 auto;
}

@media (max-width: 900px) {
  .container {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 500px) {
  .container {
    grid-template-columns: 1fr;
  }
}

.animation-container {
  position: relative;
  width: 220px;
  height: 220px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(0, 0, 0, 0.5);
  padding: 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  overflow: visible;
  transition: border-color 0.3s ease;
}

.animation-container:hover {
  border-color: rgba(255, 255, 255, 0.3);
}

.animation-title {
  margin-bottom: 10px;
  font-size: 12px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  text-align: center;
}

.circle-container {
  position: relative;
  width: 180px;
  height: 180px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.dot {
  position: absolute;
  border-radius: 50%;
  background: #fff;
}

.line {
  position: absolute;
  background: rgba(255, 255, 255, 0.5);
  transform-origin: 0% 50%;
}

.circle {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.5);
}

/* Corner decorations */
.corner {
  position: absolute;
  width: 16px;
  height: 16px;
  color: white;
  opacity: 0;
  z-index: 10;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.animation-container:hover .corner {
  opacity: 1;
}

.top-left {
  top: -8px;
  left: -8px;
  transition-delay: 0s;
}

.top-right {
  top: -8px;
  right: -8px;
  transform: rotate(90deg);
  transition-delay: 0.1s;
}

.bottom-left {
  bottom: -8px;
  left: -8px;
  transform: rotate(-90deg);
  transition-delay: 0.2s;
}

.bottom-right {
  bottom: -8px;
  right: -8px;
  transform: rotate(180deg);
  transition-delay: 0.3s;
}

/* Animation keyframes */
@keyframes orbit {
  0% {
    transform: rotate(0deg);
  }

100% {
    transform: rotate(360deg);
  }
}

@keyframes reverseOrbit {
  0% {
    transform: rotate(0deg);
  }

100% {
    transform: rotate(-360deg);
  }
}

@keyframes pulse {
  0% {
    transform: scale(0.8);
    opacity: 0.3;
  }

50% {
    transform: scale(1.2);
    opacity: 1;
  }

100% {
    transform: scale(0.8);
    opacity: 0.3;
  }
}

@keyframes ripple {
  0% {
    transform: scale(0.1);
    opacity: 0.6;
  }

100% {
    transform: scale(1);
    opacity: 0;
  }
}

JavaScript

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