关键帧没有动画高度

Posted 2023-03-04

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【中文标题】关键帧没有动画高度【英文标题】：Keyframes not animating height 【发布时间】：2022-01-13 23:59:37 【问题描述】：

我在我的 scss 中创建的关键帧应该为我的高度设置动画以使其成为 2s 动画，但它并没有这样做，而是高度只是立即变换，但同一关键帧中的宽度正在设置动画。

@import url("https://fonts.googleapis.com/css2?family=Maven+Pro:wght@500&family=Roboto&display=swap");
* 
  font-family: "Maven Pro", sans-serif;
  color: white;
  animation-delay: 1s;


body 
  width: 100%;
  height: 100vh;
  margin: 0%;
  background-color: green;
  display: flex;
  justify-content: center;
  align-items: flex-end;
  overflow: hidden;
  position: absolute;
  bottom: 5%;


.swipe 
  animation-name: swipeWidthHeight, close;
  animation-duration: 0.3s 2s;
  animation-delay: 1s, 10s;
  animation-fill-mode: forwards, forwards;
  display: flex;
  justify-content: center;
  height: 179px;
  width: 434px;
  background-color: #fff;


.swipe .side 
  width: 180px;
  height: 100%;
  background-color: #fff;
  display: flex;
  justify-content: center;
  animation-name: imageSize;
  animation-fill-mode: forwards;
  animation-duration: 0.3s;


.swipe .side img 
  width: 80%;


.swipe .center 
  position: relative;
  animation-name: centerExpand;
  animation-fill-mode: forwards;
  animation-duration: 0.3s;
  width: 74px;
  height: 100%;
  background-color: #38003c;
  display: flex;
  justify-content: center;
  align-items: center;


.swipe .center .popup.firstHalf 
  opacity: 0;
  position: absolute;
  transform: translateX(-50%);
  left: 50%;
  width: 135px;
  height: 35px;
  background-color: white;
  color: #38003c;
  text-align: center;
  font-family: "roboto";
  font-size: 22px;
  line-height: 35px;
  font-weight: 500;
  animation-name: firstHalf;
  animation-delay: 2s;
  animation-duration: 3s;
  animation-fill-mode: forwards;


.swipe .center .popup.eaSports 
  opacity: 0;
  position: absolute;
  transform: translateX(-50%);
  left: 50%;
  width: 110px;
  height: 76px;
  background-color: #38003c;
  color: #38003c;
  display: flex;
  align-items: center;
  justify-content: center;
  animation-name: firstHalf;
  animation-delay: 4.8s;
  animation-duration: 3s;
  animation-fill-mode: forwards;


.swipe .center .popup.eaSports img 
  width: 61px;


.swipe .center .textContainer 
  font-weight: 400;
  opacity: 0;
  margin: 0% 2% 0% 2%;
  height: 100%;
  width: 100%;


.swipe .center .textContainer.left 
  text-align: right;
  animation-delay: 1.15s;
  animation-name: leftText;
  animation-duration: 0.2s;
  animation-fill-mode: forwards;
  animation-timing-function: cubic-bezier(0.34, 0.58, 0.37, 1.48);


.swipe .center .textContainer.right 
  animation-name: rightText;
  animation-delay: 1.15s;
  animation-duration: 0.2s;
  animation-fill-mode: forwards;
  animation-timing-function: cubic-bezier(0.34, 0.58, 0.37, 1.48);


.swipe .center img 
  width: 44px;


@keyframes swipeWidthHeight 
  0% 
    height: 179px;
    width: 434px;
  
  100% 
    height: 77px;
    width: 1064px;
  


@keyframes centerExpand 
  90% 
    justify-content: space-between;
  
  100% 
    width: 1020px;
    justify-content: space-between;
  


@keyframes rightText 
  0% 
    opacity: 1;
  
  100% 
    padding-left: 10%;
    opacity: 1;
  


@keyframes leftText 
  0% 
    opacity: 1;
  
  100% 
    padding-right: 10%;
    opacity: 1;
  


@keyframes imageSize 
  100% 
    height: 77px;
    width: 77px;
  


@keyframes firstHalf 
  0% 
    opacity: 1;
    bottom: 0%;
    z-index: -1;
  
  10% 
    z-index: -1;
    opacity: 1;
    bottom: 100%;
  
  90% 
    z-index: -1;
    opacity: 1;
    bottom: 100%;
  
  99% 
    z-index: -1;
    opacity: 1;
    bottom: 0%;
  
  100% 
    z-index: -1;
    opacity: 0;
    bottom: 0%;
  


@keyframes close 
  100% 
    width: 1064px;
    height: 77px;
    bottom: -20%;

<body>
  <div class="swipe">
    <div class="left side">
      <img src="https://cdn.discordapp.com/attachments/868038988437536768/918357217772732446/crest.svg" >
    </div>
    <div class="center">
      <div class="firstHalf popup">First Half</div>
      <div class="eaSports popup">
        <img src="https://cdn.discordapp.com/attachments/868038988437536768/918357218003415080/ea-sports-logo.png" >
      </div>
      <div class="textContainer left">
        <h1 class="text ">MANCHESTER CITY</h1>
      </div>
      <img src="https://cdn.discordapp.com/attachments/868038988437536768/918357218208907274/premier-league-icon.png" >
      <div class="textContainer right">
        <h1 class="text ">MANCHESTER CITY</h1>
      </div>
    </div>
    <div class="right side">
      <img src="https://cdn.discordapp.com/attachments/868038988437536768/918357217772732446/crest.svg" >
    </div>
  </div>
</body>

在代码笔中，“swipe”类和“swipeWidthHeight”的关键帧是存在高度问题的元素，没有动画。

如果整个项目为了更好地理解，下面是一个codepen https://codepen.io/charlieschuyler/pen/zYBZzZv

【问题讨论】：

【参考方案1】：

缺少逗号：

.swipe 
  animation-name: swipeWidthHeight, close;
  animation-duration: 0.3s, 2s; /* missing comma */
  animation-delay: 1s, 10s;
  animation-fill-mode: forwards, forwards;
  display: flex;
  justify-content: center;
  height: 179px;
  width: 434px;
  background-color: #fff;

【讨论】：

一个简单的错误又让我失望了！哈哈，有时会发生

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