填充水动画

Question

我正在尝试一个擦除动画，让圆圈看起来像它充满水。我遇到了两个错误，甚至无法解决第三个错误：

1. 它填补了错误的方式
2. 在填充 *
后重置为空（黑色）
3. 目前，我正在使用<img>代码，但我想将此效果移至body { background-image: }，并需要指明如何执行此操作。

What I have tried so far:

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#banner {
  width: 300px;
  height: 300px;
  position: relative;
}
#banner div {
  position: absolute;
}
#banner div:nth-child(2) {
  -webkit-animation: wipe 6s;
  -webkit-animation-delay: 0s;
  -webkit-animation-direction: up;
  -webkit-mask-size: 300px 3000px;
  -webkit-mask-position: 300px 300px;
  -webkit-mask-image: -webkit-gradient(linear, left bottom, left top, color-stop(0.00, rgba(0, 0, 0, 1)), color-stop(0.25, rgba(0, 0, 0, 1)), color-stop(0.27, rgba(0, 0, 0, 0)), color-stop(0.80, rgba(0, 0, 0, 0)), color-stop(1.00, rgba(0, 0, 0, 0)));
}
@-webkit-keyframes wipe {
  0% {
    -webkit-mask-position: 0 0;
  }
  100% {
    -webkit-mask-position: 300px 300px;
  }
}
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<div id="banner">
  <div>
    <img src="http://i.imgur.com/vklf6kK.png" />
  </div>
  <div>
    <img src="http://i.imgur.com/uszeRpk.png" />
  </div>
</div>
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---

将其设为@anpsmn建议的默认遮罩位置，不再将其重置为黑色。

Answer 1

以下是补充@misterManSam's brilliant answer的四个不同版本。

1。随着缓解

---

<强>解释

如果你装满了一个装满液体的圆形碗，它会在底部和顶部填充比在中间填充的更快（因为在更宽的中间部分有更多的区域可以覆盖）。因此，考虑到粗略的解释，动画需要：快速开始，中间慢，然后当碗在顶部再次变窄时快速完成。

为此，我们可以使用CSS3缓动功能：cubic-bezier(.2,.6,.8,.4)。

看一下下面的例子。

（如果你想在这里调整宽松是一个很好的资源：http://cubic-bezier.com/#.2,.6,.8,.4 ）

示例：

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#banner {
  width: 150px;
  height: 150px;
  position: relative;
  background: #000;
  border-radius: 50%;
  overflow: hidden;
}
#banner::before {
  content: '';
  position: absolute;
  background: #04ACFF;
  width: 100%;
  bottom: 0;
  animation: wipe 5s cubic-bezier(.2,.6,.8,.4) forwards;
}
@keyframes wipe {
  0% {
    height: 0;
  }
  100% {
    height: 100%;
  }
}

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<div id="banner">

</div>

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2。 SVG美味

让我们更进一步？如果我们想在＆＃34;水＆＃34;上添加波浪状表面怎么办？用CSS？我们可以使用惊人的SVG来做到这一点。我在Adobe Illustrator中创建了一个波浪形SVG图像，然后设置动画，以便在一个循环中从左到右行进，并带有单独的CSS动画，并且瞧瞧：

示例

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#banner {
    border-radius: 50%;
    width: 150px;
    height: 150px;
    background: #000;
    overflow: hidden;
    backface-visibility: hidden;
    transform: translate3d(0, 0, 0);
}
#banner .fill {
    animation-name: fillAction;
    animation-iteration-count: 1;
    animation-timing-function: cubic-bezier(.2, .6, .8, .4);
    animation-duration: 4s;
    animation-fill-mode: forwards;
}
#banner #waveShape {
    animation-name: waveAction;
    animation-iteration-count: infinite;
    animation-timing-function: linear;
    animation-duration: 0.5s;
    width:300px;
    height: 150px;
    fill: #04ACFF;
}
@keyframes fillAction {
    0% {
        transform: translate(0, 150px);
    }
    100% {
        transform: translate(0, -5px);
    }
}
@keyframes waveAction {
    0% {
        transform: translate(-150px, 0);
    }
    100% {
        transform: translate(0, 0);
    }
}

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<div id="banner">
<div class="fill">
    <svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" width="300px" height="300px" viewBox="0 0 300 300" enable-background="new 0 0 300 300" xml:space="preserve">
      <path fill="#04ACFF" id="waveShape" d="M300,300V2.5c0,0-0.6-0.1-1.1-0.1c0,0-25.5-2.3-40.5-2.4c-15,0-40.6,2.4-40.6,2.4
	c-12.3,1.1-30.3,1.8-31.9,1.9c-2-0.1-19.7-0.8-32-1.9c0,0-25.8-2.3-40.8-2.4c-15,0-40.8,2.4-40.8,2.4c-12.3,1.1-30.4,1.8-32,1.9
	c-2-0.1-20-0.8-32.2-1.9c0,0-3.1-0.3-8.1-0.7V300H300z"/>
    </svg>
</div>
</div>

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3。用倾斜线

---

此示例包括浇注线（大多数碗从顶部填充，而不是从底部填充）。浇筑线首先从上到下进行动画处理，而animation-delay属性可防止填充动画发生，直到浇筑完成为止。

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#banner {
  border-radius: 50%;
  width: 150px;
  height: 150px;
  background: #000;
  overflow: hidden;
  backface-visibility: hidden;
  transform: translate3d(0, 0, 0);
  position: relative;
}

#banner .fill {
  transform: translateY(150px);
  animation-name: fillAction;
  animation-iteration-count: 1;
  animation-timing-function: cubic-bezier(.2, .6, .8, .4);
  animation-duration: 4s;
  animation-fill-mode: forwards;
  animation-delay: 0.25s;
}

#banner .pour {
  width: 6px;
  position: absolute;
  left: 50%;
  margin-left: -3px;
  bottom: 0;
  top: 0;
  background: #009ae6;
  animation-name: pourAction;
  animation-timing-function: linear;
  animation-duration: 0.25s;
}

#banner #waveShape {
  animation-name: waveAction;
  animation-iteration-count: infinite;
  animation-timing-function: linear;
  animation-duration: 0.5s;
  width: 300px;
  height: 150px;
  fill: #04ACFF;
}

@keyframes pourAction {
  0% {
    transform: translateY(-100%);
  }
  100% {
    transform: translateY(0);
  }
}

@keyframes fillAction {
  0% {
    transform: translateY(150px);
  }
  100% {
    transform: translateY(-5px);
  }
}

@keyframes waveAction {
  0% {
    transform: translate(-150px, 0);
  }
  100% {
    transform: translate(0, 0);
  }
}

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<div id="banner">
  <div class="pour"></div>
  <div class="fill">
    <svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" width="300px" height="300px" viewBox="0 0 300 300" enable-background="new 0 0 300 300" xml:space="preserve">
      <path fill="#04ACFF" id="waveShape" d="M300,300V2.5c0,0-0.6-0.1-1.1-0.1c0,0-25.5-2.3-40.5-2.4c-15,0-40.6,2.4-40.6,2.4
c-12.3,1.1-30.3,1.8-31.9,1.9c-2-0.1-19.7-0.8-32-1.9c0,0-25.8-2.3-40.8-2.4c-15,0-40.8,2.4-40.8,2.4c-12.3,1.1-30.4,1.8-32,1.9
c-2-0.1-20-0.8-32.2-1.9c0,0-3.1-0.3-8.1-0.7V300H300z" />
    </svg>
  </div>
</div>

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4。严肃的金光闪闪（美丽的美学）

---

此示例为CSS添加了一些属性，使其看起来更逼真。

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.bowl {
  position: relative;
  border-radius: 50%;
  width: 150px;
  height: 150px;
  box-shadow: inset 0 -5px 0 0 rgba(0, 0, 0, 0.5), inset 0 -20px 5px 0 rgba(0, 0, 0, 0.2), inset -15px 0 5px 0 rgba(0, 0, 0, 0.1), inset 15px 0 5px 0 rgba(0, 0, 0, 0.1);
  background: -moz-radial-gradient(center, ellipse cover, transparent 0%, transparent 76%, rgba(0, 0, 0, 0.65) 100%);
  background: -webkit-radial-gradient(center, ellipse cover, transparent 0%, transparent 76%, rgba(0, 0, 0, 0.65) 100%);
  background: radial-gradient(ellipse at center, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0) 76%, rgba(0, 0, 0, 0.65) 100%);
  margin: 20px;
}
.bowl:before {
  overflow: hidden;
  border-radius: 50%;
  content: "";
  box-shadow: inset 0 -5px 0 0 rgba(0, 0, 0, 0.5), inset 0 -20px 5px 0 rgba(0, 0, 0, 0.2), inset -15px 0 5px 0 rgba(0, 0, 0, 0.1), inset 15px 0 5px 0 rgba(0, 0, 0, 0.1);
  background: -moz-radial-gradient(center, ellipse cover, transparent 0%, transparent 60%, rgba(0, 0, 0, 0.65) 81%, black 100%);
  background: -webkit-radial-gradient(center, ellipse cover, transparent 0%, transparent 60%, rgba(0, 0, 0, 0.65) 81%, black 100%);
  background: radial-gradient(ellipse at center, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0) 60%, rgba(0, 0, 0, 0.65) 81%, #000000 100%);
  position: absolute;
  width: 150px;
  height: 150px;
  z-index: 2;
}
.bowl:after {
  content: "";
  width: 60px;
  border-radius: 50%;
  height: 5px;
  background: #039be4;
  box-shadow: inset 0 0 10px 0 #000;
  position: absolute;
  left: 50%;
  margin-left: -30px;
  bottom: 0;
  z-index: 2;
}
.bowl .inner {
  border-radius: 50%;
  width: 150px;
  height: 150px;
  background: -moz-radial-gradient(center, ellipse cover, transparent 0%, transparent 76%, rgba(0, 0, 0, 0.65) 100%);
  background: -webkit-radial-gradient(center, ellipse cover, transparent 0%, transparent 76%, rgba(0, 0, 0, 0.65) 100%);
  background: radial-gradient(ellipse at center, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0) 76%, rgba(0, 0, 0, 0.65) 100%);
  overflow: hidden;
  -webkit-backface-visibility: hidden;
  -webkit-transform: translate3d(0, 0, 0);
}
.bowl .inner:before {
  content: "";
  width: 20px;
  height: 20px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  position: absolute;
  right: 40%;
  top: 60%;
  z-index: 2;
}
.bowl .inner:after {
  content: "";
  width: 20px;
  height: 40px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  position: absolute;
  right: 30%;
  top: 15%;
  transform: rotate(-20deg);
  z-index: 2;
}
.bowl .fill {
  -webkit-animation-name: fillAction;
  -webkit-animation-iteration-count: 1;
  -webkit-animation-timing-function: cubic-bezier(0.2, 0.6, 0.8, 0.4);
  -webkit-animation-duration: 4s;
  -webkit-animation-fill-mode: forwards;
}
.bowl .waveShape {
  -webkit-animation-name: waveAction;
  -webkit-animation-iteration-count: infinite;
  -webkit-animation-timing-function: linear;
  -webkit-animation-duration: 0.5s;
  width: 300px;
  height: 150px;
  fill: #039be4;
}

@-webkit-keyframes fillAction {
  0% {
    -webkit-transform: translate(0, 150px);
  }
  100% {
    -webkit-transform: translate(0, 10px);
  }
}
@-webkit-keyframes waveAction {
  0% {
    -webkit-transform: translate(-150px, 0);
  }
  100% {
    -webkit-transform: translate(0, 0);
  }
}
/* For aesthetics only ------------------------------------------*/
body {
  margin: 0;
  font-family: Segoe, "Segoe UI", "DejaVu Sans", "Trebuchet MS", Verdana, sans-serif;
}

h1 {
  font: 200 1.2em "Segoe UI Light", "DejaVu Sans", "Trebuchet MS", Verdana, sans-serif;
  font-weight: 200;
  color: #fff;
  background: #039be4;
  padding: 20px;
  margin: 0;
  border-bottom: 10px solid #ccc;
}
h1 strong {
  font-family: "Segoe UI Black";
  font-weight: normal;
}

.explanation {
  padding: 20px 40px;
  float: right;
  background: #e64a19;
  -webkit-box-shadow: inset 0 30px 3px 0 rgba(0, 0, 0, 0.5);
  box-shadow: inset 0 3px 5px 0 rgba(0, 0, 0, 0.2);
  border-bottom: 10px solid #ccc;
  max-width: 300px;
}
.explanation p {
  color: #fff;
  font-size: 0.8rem;
}

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<div class="bowl">
  <div class="inner">
    <div class="fill">
      <svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" width="300px" height="300px" viewBox="0 0 300 300" enable-background="new 0 0 300 300" xml:space="preserve">
        <path class="waveShape" d="M300,300V2.5c0,0-0.6-0.1-1.1-0.1c0,0-25.5-2.3-40.5-2.4c-15,0-40.6,2.4-40.6,2.4
	c-12.3,1.1-30.3,1.8-31.9,1.9c-2-0.1-19.7-0.8-32-1.9c0,0-25.8-2.3-40.8-2.4c-15,0-40.8,2.4-40.8,2.4c-12.3,1.1-30.4,1.8-32,1.9
	c-2-0.1-20-0.8-32.2-1.9c0,0-3.1-0.3-8.1-0.7V300H300z" />
      </svg>
    </div>
  </div>
</div>

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Answer 2

这可以通过单个div和::before pseudo element:

来实现

• #banner为border-radius: 50%创建一个圆圈，overflow: hidden将其子项剪辑在其中

• 将::before伪元素设置为100％高度动画，并使用the forwards value将动画暂停为100％。它使用bottom: 0

从底部开始

• 将应用背景图片代替#banner和#banner::before

上的黑色和蓝色背景

兼容性： IE10 +以及所有现代浏览器。您的关键帧动画很可能不再需要-webkit-前缀属性。 Check the browser compatibility chart over here on caniuse.com

工作示例

我添加了cubic-bezier(.2,.6,.8,.4) which is explained in @ChrisSpittles answer。它提供了一个整洁的效果！

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#banner {
  width: 300px;
  height: 300px;
  position: relative;
  background: #000;
  border-radius: 50%;
  overflow: hidden;
}
#banner::before {
  content: '';
  position: absolute;
  background: #04ACFF;
  width: 100%;
  bottom: 0;
  animation: wipe 5s cubic-bezier(.2,.6,.8,.4) forwards;
}
@keyframes wipe {
  0% {
    height: 0;
  }
  100% {
    height: 100%;
  }
}

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<div id="banner">

</div>

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Answer 3

我认为这实现了你的第一个目标：

#banner div:nth-child(2) {
  -webkit-animation: wipe 6s;
  -webkit-animation-delay: 0s;
  -webkit-animation-direction: up;
  -webkit-mask-size: 300px 3000px;
  -webkit-mask-position: 300px 300px;
  -webkit-mask-image: -webkit-gradient(linear, left bottom, left top,
    color-stop(0.00,  rgba(0,0,0,0)),
    color-stop(0.25,  rgba(0,0,0,0)),
    color-stop(0.27,  rgba(0,0,0,0)),
    color-stop(0.80,  rgba(0,0,0,1)),
    color-stop(1.00,  rgba(0,0,0,1)));
 }

 @-webkit-keyframes wipe {
     0% {
    -webkit-mask-position: 300px 300px;
  }
     100% {
    -webkit-mask-position: 0 0;
  }
}

Answer 4

纯CSS，无JavaScript，无SVG。在overflow: hidden中关闭.shape ，以了解其工作原理。

使用CSS animation进行制作。您可以对填充和动画 @keyframes

处以罚款。

如果您希望使用JavaScript进行填充，则可以访问.wave元素。 top: 50%;为0％，top: -75%为100％加载。您可以根据需要使用此数字。

.shape {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  overflow: hidden;
  position: relative;
}

.shape:after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  box-shadow: inset 0px 0px 30px 0px rgba(0, 0, 0, 0.3);
  overflow: hidden;
  z-index: 3;
}

.wave {
  position: absolute;
  top: 50%;
  left: 0;
  width: 200%;
  height: 200%;
  transform: translate(-25%, 0);
  background: #4973ff;
  animation: fill-up 10s ease infinite;
}

@keyframes fill-up {
  to {
    top: -75%;
  }
}

.wave:before,
.wave:after {
  content: '';
  position: absolute;
  width: 110%;
  height: 100%;
  top: 0;
  left: 50%;
  transform: translate(-50%, -75%);
  background: #000;
}

.wave:before {
  border-radius: 45%;
  background: rgba(179, 241, 255, 1);
  animation: animate 3s linear infinite;
}

.wave:after {
  border-radius: 40%;
  background: rgba(179, 241, 255, 0.5);
  animation: animate 3s linear infinite;
}

@keyframes animate {
  0% {
    transform: translate(-50%, -75%) rotate(0deg);
  }
  100% {
    transform: translate(-50%, -75%) rotate(360deg);
  }
}

<div class="shape">
  <div class="wave">
  </div>
</div>

Answer 5

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div{
  width: 200px;
  height: 200px;
  background: #ccc;
  border-radius: 50%;
  overflow: hidden;
  position: relative;
  z-index: 9;
}
div:before{
  content: '';
  position: absolute; top: 100%; left: 0;
  width: 100%;
  height: 100%;
  background: #00BFFF;  
  -webkit-animation: animtop 5s forwards, animtop2 2s forwards;
  animation: animtop 5s forwards, animtop2 2s forwards;
}
@-webkit-keyframes animtop{  
  0%{top: 100%;}  
  75%{top: 0}
}
@keyframes animtop{  
  0%{top: 100%;}  
  100%{top: 25%}
}
@-webkit-keyframes animtop2{  
  75%{top: 25%;}  
  100%{top: 0}
}
@keyframes animtop2{  
  75%{top: 25%;}  
  100%{top: 0}
}

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<div></div>

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Answer 6

这是在哈弗（Hover）的一个div中填充水的有效工作鳕鱼

HTML

<div class="dot">
</div>

CSS

.dot {
  border: 1px;  
  border-style: solid;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  border-color: black;
  color: black;
  padding: 5px;
  background-size: 200% 200%;
  background-image: 
  linear-gradient(to top, #76daff 50%, transparent 50%);
  transition: background-position 3000ms, color 3000ms ease, border-color 3000ms ease;
}

.dot:hover {
  color: white;
  border-color: black;
  background-image: 
    linear-gradient(to top, #76daff 51%, transparent 50%);
  background-position: 0 100%;
  transition: background-position 3000ms, color 3000ms ease, border-color 3000ms ease;
}

https://codepen.io/ajitkumar96/pen/pOYbQm?editors=1100