css 模仿水的感觉

之前做个一个需求，水柱慢慢变满；体现进度条

实现原理其实挺简单的：

两个旋转的带弧度的环球圆球的东西东西遮掉纯色的背景；并且慢慢向上移动

index.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div class="container">
        <div class="wave"></div>
    </div> 
</body>
<style>
    .wave {
	position: relative;
	width: 200px;
	height: 200px;
	background-color: rgb(118, 218, 255);
	border-radius: 50%;
    /* background-color: rgb(255, 115, 145); */
}
.wave:before,
.wave:after{
	content: "";
	position: absolute;
	width: 400px;
	height: 400px;
	/* top: -80px; */
    top: 40px;
	left: 50%;
	background-color: rgba(255, 255, 255, .4);
	border-radius: 45%;
	transform: translate(-50%, -70%) rotate(0);
	animation: rotate 5s linear infinite;
	z-index: 10;
}

.wave:after {
	border-radius: 47%;

	background-color: rgba(255, 255, 255, .9);
	transform: translate(-50%, -70%) rotate(90);
    animation: rotate1 5s linear   infinite;
	/* animation: rotate 10s linear -5s infinite; */
	z-index: 20;
}

@keyframes rotate {
	0% {
		transform: translate(-50%, -73%) rotate(0deg);
		top:0px;

	} 
	50% {
		transform: translate(-50%, -73%) rotate(180deg);
        top: -40;

	} 100% {
		transform: translate(-50%, -70%) rotate(360deg);
        top: -80px;
	}
}
@keyframes rotate1 {
	0% {
		transform: translate(-50%, -73%) rotate(0deg);
		top:0px;

	}  
	50% {
		transform: translate(-50%, -73%) rotate(90deg);
		top:-40px;

	} 100% {
		transform: translate(-50%, -70%) rotate(270deg);
        top: -80px;
	}
}
</style>
</html>

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