CSS3计算动画延迟以创建滑动效果

Question

我有一个与动画延迟相关的问题。我有6张图片的列表，所以我想创建一个自动滑动的轮播效果。因此，我已经在CSS动画中让它们进行了平移。然而，图像运行的时间没有很好地计算，因此，在查看它时，图像会短暂重叠。我想要实现的是使图像不重叠并且平稳地循环运行。我已经创建了一个fiddle。

.banner ul {
  list-style: none;
  margin: 0;
  padding: 0;
  width: 300px;
  height: 200px;
  display: inline-block;
  position: relative;
}

 .banner ul li {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  animation: coverflow 9.5s ease infinite;
}

  .banner ul li:nth-child(2) {
  animation-delay: 1.5s;
}
 .banner ul li:nth-child(3) {
  animation-delay: 3s;
}
 .banner ul li:nth-child(4) {
  animation-delay: 4.5s;
}
 .banner ul li:nth-child(5) {
  animation-delay: 6s;
}
 .banner ul li:nth-child(6) {
  animation-delay: 7.5s;
}
 .banner ul li:nth-child(7) {
  animation-delay: 9s;
}

 .banner ul li img {
  width: 100%;
  height: 100%;
}


@keyframes 
coverflow {  
0%, 10% {
 opacity: 1;
 transform: none;
 z-index: 10;
}
 25%, 35% {
 opacity: 0.2;
 transform: translate3d(-170px, 0, 0) scale(0.6);
}
 50% {
 opacity: 0;
 transform: translate3d(-190px, 0, 0) scale(0.6);
}
 60% {
 opacity: 0;
 transform: translate3d(190px, 0, 0) scale(0.6);
}
 75%, 85% {
 opacity: 0.2;
 transform: translate3d(170px, 0, 0) scale(0.6);
}
}

这是 JSFiddle 示例：

https://jsfiddle.net/4anedqzp/2/

非常感谢。

- leo277

Answer 1

你可以尝试这样做：

我将动画设置为从新状态开始，以避免重叠。我还将持续时间修改为9秒，以确保每次循环都相同。

.banner {
  text-align: center;
}

.banner ul {
  list-style: none;
  margin: 0;
  padding: 0;
  width: 300px;
  height: 200px;
  display: inline-block;
  position: relative;
}

.banner ul li {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  animation: coverflow 9s ease infinite;
  opacity: 0.2;
  z-index: -1;
  transform: translate3d(170px, 0, 0) scale(0.6);
}

.banner ul li:nth-child(2) {
  animation-delay: 1.5s;
}

.banner ul li:nth-child(3) {
  animation-delay: 3s;
}

.banner ul li:nth-child(4) {
  animation-delay: 4.5s;
}

.banner ul li:nth-child(5) {
  animation-delay: 6s;
}

.banner ul li:nth-child(6) {
  animation-delay: 7.5s;
}

.banner ul li:nth-child(7) {
  animation-delay: 9s;
}

.banner ul li img {
  width: 100%;
  height: 100%;
}

@keyframes coverflow {
  0%,
  10% {
    opacity: 0.2;
    z-index: -1;
    transform: translate3d(170px, 0, 0) scale(0.6);
  }
  10%,
  25% {
    opacity: 1;
    transform: none;
  }
  25%,
  45% {
    opacity: 0.2;
    z-index: -1;
    transform: translate3d(-170px, 0, 0) scale(0.6);
  }
  60% {
    opacity: 0;
    z-index: -1;
    transform: translate3d(-190px, 0, 0) scale(0.6);
  }
  70% {
    opacity: 0;
    z-index: -1;
    transform: translate3d(190px, 0, 0) scale(0.6);
  }
}

<div class="banner">
  <ul>
    <li><img src="https://lh3.googleusercontent.com/wdFgfoxO5xFb5s194SbECtHEe-HU3BfM5MqL3896G1esFN02J_aqp5yaQ39-IMHqRjY=w300"></li>
    <li><img src="https://pbs.twimg.com/profile_images/875822477225734146/6I5lQUof_400x400.jpg"></li>
    <li><img src="http://study.com/cimages/multimages/16/solid_shape_dice.jpg"></li>
    <li><img src="https://lh3.googleusercontent.com/kIy-fJ9XgrZlOeMRUY5lJslDDhTCxddxh9Vwpitm-vOaFkYgLW0yFGcpgfWYatFwrVE=w300"></li>
    <li><img src="https://www.jaapsch.net/puzzles/images/square1.jpg"></li>
    <li><img src="http://www.op-art.co.uk/op-art-gallery/var/albums/your-op-art/GDHarley_OP-ART_%2311.jpg?m=1382213140"></li>
  </ul>
</div>

- Temani Afif