该css3线条波浪动画效果的HTML结构如下:
<div class="waveWrapper waveAnimation"> <div class="waveWrapperInner bgTop"> <div class="wave waveTop" style="background-image: url(\'img/wave-top.png\')"></div> </div> <div class="waveWrapperInner bgMiddle"> <div class="wave waveMiddle" style="background-image: url(\'img/wave-mid.png\')"></div> </div> <div class="waveWrapperInner bgBottom"> <div class="wave waveBottom" style="background-image: url(\'img/wave-bot.png\')"></div> </div> </div>
然后通过下面的CSS代码来制作线条波浪动画效果。
@keyframes move_wave { 0% { transform: translateX(0) translateZ(0) scaleY(1) } 50% { transform: translateX(-25%) translateZ(0) scaleY(0.55) } 100% { transform: translateX(-50%) translateZ(0) scaleY(1) } } .waveWrapper { overflow: hidden; position: absolute; left: 0; right: 0; bottom: 0; top: 0; margin: auto; } .waveWrapperInner { position: absolute; width: 100%; overflow: hidden; height: 100%; bottom: -1px; background-image: linear-gradient(to top, #86377b 20%, #27273c 80%); } .bgTop { z-index: 15; opacity: 0.5; } .bgMiddle { z-index: 10; opacity: 0.75; } .bgBottom { z-index: 5; } .wave { position: absolute; left: 0; width: 200%; height: 100%; background-repeat: repeat no-repeat; background-position: 0 bottom; transform-origin: center bottom; } .waveTop { background-size: 50% 100px; } .waveAnimation .waveTop { animation: move-wave 3s; -webkit-animation: move-wave 3s; -webkit-animation-delay: 1s; animation-delay: 1s; } .waveMiddle { background-size: 50% 120px; } .waveAnimation .waveMiddle { animation: move_wave 10s linear infinite; } .waveBottom { background-size: 50% 100px; } .waveAnimation .waveBottom { animation: move_wave 15s linear infinite; }
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