本篇文章通过代码实例给大家介绍一下svg+css3实现动感的波浪效果。有一定的参考价值，有需要的朋友可以参考一下，希望对大家有所帮助。
一根矢量的波浪
<svg viewBox="0 0 560 20" class="wave-animation__water-wave wave-animation__water-wave--front">
<use xlink:href="#wave"></use>
</svg>
<svg id="wave" width="100%" height="100%">
<path d="M420,20c21.5-0.4,38.8-2.5,51.1-4.5c13.4-2.2,26.5-5.2,27.3-5.4C514,6.5,518,4.7,528.5,2.7c7.1-1.3,17.9-2.8,31.5-2.7c0,0,0,0,0,0v20H420z"></path>
<path d="M420,20c-21.5-0.4-38.8-2.5-51.1-4.5c-13.4-2.2-26.5-5.2-27.3-5.4C326,6.5,322,4.7,311.5,2.7C304.3,1.4,293.6-0.1,280,0c0,0,0,0,0,0v20H420z"></path>
<path d="M140,20c21.5-0.4,38.8-2.5,51.1-4.5c13.4-2.2,26.5-5.2,27.3-5.4C234,6.5,238,4.7,248.5,2.7c7.1-1.3,17.9-2.8,31.5-2.7c0,0,0,0,0,0v20H140z"></path>
<path d="M140,20c-21.5-0.4-38.8-2.5-51.1-4.5c-13.4-2.2-26.5-5.2-27.3-5.4C46,6.5,42,4.7,31.5,2.7C24.3,1.4,13.6-0.1,0,0c0,0,0,0,0,0l0,20H140z"></path>
</svg>完整代码：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1,user-scalable=no">
</head>
<body>
<div class="circle-countdown circle-countdown--ended">
<div class="circle-countdown__content-wrapper">
<div class="circle-countdown__content wave-animation">
<div id="water" class="wave-animation__water">
<svg viewBox="0 0 560 20" class="wave-animation__water-wave wave-animation__water-wave--back">
<path
d="M420,20c21.5-0.4,38.8-2.5,51.1-4.5c13.4-2.2,26.5-5.2,27.3-5.4C514,6.5,518,4.7,528.5,2.7c7.1-1.3,17.9-2.8,31.5-2.7c0,0,0,0,0,0v20H420z">
</path>
<path
d="M420,20c-21.5-0.4-38.8-2.5-51.1-4.5c-13.4-2.2-26.5-5.2-27.3-5.4C326,6.5,322,4.7,311.5,2.7C304.3,1.4,293.6-0.1,280,0c0,0,0,0,0,0v20H420z">
</path>
<path
d="M140,20c21.5-0.4,38.8-2.5,51.1-4.5c13.4-2.2,26.5-5.2,27.3-5.4C234,6.5,238,4.7,248.5,2.7c7.1-1.3,17.9-2.8,31.5-2.7c0,0,0,0,0,0v20H140z">
</path>
<path
d="M140,20c-21.5-0.4-38.8-2.5-51.1-4.5c-13.4-2.2-26.5-5.2-27.3-5.4C46,6.5,42,4.7,31.5,2.7C24.3,1.4,13.6-0.1,0,0c0,0,0,0,0,0l0,20H140z">
</path>
</svg>
<svg viewBox="0 0 560 20" class="wave-animation__water-wave wave-animation__water-wave--front">
<path
d="M420,20c21.5-0.4,38.8-2.5,51.1-4.5c13.4-2.2,26.5-5.2,27.3-5.4C514,6.5,518,4.7,528.5,2.7c7.1-1.3,17.9-2.8,31.5-2.7c0,0,0,0,0,0v20H420z">
</path>
<path
d="M420,20c-21.5-0.4-38.8-2.5-51.1-4.5c-13.4-2.2-26.5-5.2-27.3-5.4C326,6.5,322,4.7,311.5,2.7C304.3,1.4,293.6-0.1,280,0c0,0,0,0,0,0v20H420z">
</path>
<path
d="M140,20c21.5-0.4,38.8-2.5,51.1-4.5c13.4-2.2,26.5-5.2,27.3-5.4C234,6.5,238,4.7,248.5,2.7c7.1-1.3,17.9-2.8,31.5-2.7c0,0,0,0,0,0v20H140z">
</path>
<path
d="M140,20c-21.5-0.4-38.8-2.5-51.1-4.5c-13.4-2.2-26.5-5.2-27.3-5.4C46,6.5,42,4.7,31.5,2.7C24.3,1.4,13.6-0.1,0,0c0,0,0,0,0,0l0,20H140z">
</path>
</svg>
</div>
</div>
</div>
</div>
<style>
.circle-countdown {
width: 441px;
height: 441px;
position: relative;
top: 0;
left: 0;
padding: 2.5rem;
border: 1px solid #fb64b6;
border-radius: 50%;
overflow: hidden;
}
.wave-animation {
overflow: hidden;
}
.wave-animation__percent {
position: absolute;
left: 0;
top: 0;
z-index: 3;
width: 100%;
height: 100%;
display: flex;
display: -webkit-flex;
align-items: center;
justify-content: center;
color: #fff;
font-size: 64px;
}
.wave-animation__water {
position: absolute;
left: 0;
top: 0;
z-index: -1;
width: 100%;
height: 100%;
/* 调整这里的60%就可以改变进度，波浪高低 */
transform: translate(0, calc(100% - 60%));
background: #f852d6;
transition: all 2s;
}
.wave-animation__water-wave {
width: 200%;
position: absolute;
bottom: 100%;
}
.wave-animation__water-wave--back {
right: 0;
fill: #1d1d1d;
animation: wave-back 1.4s infinite linear;
}
.wave-animation__water-wave--front {
left: 0;
fill: #f852d6;
margin-bottom: -1px;
animation: wave-front 0.7s infinite linear;
}
@keyframes wave-front {
100% {
transform: translate(-50%, 0);
}
}
@keyframes wave-back {
100% {
transform: translate(50%, 0);
}
}
</style>
</body>
</html>效果图：
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