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html - 如何制作循环背景元素？

问题描述

当我听说样式化组件时，我正在学习 React。我去了他们的网站（styled-components.com），看到了一个有趣的效果。在USED BY FOLKS AT部分中，有两行标志从屏幕上滚动出来，然后又回到另一侧。我在 jsFiddle 中尝试了一些东西，但结果非常糟糕，我只是关闭它并放弃了。

我假设我需要使用关键帧动画，包括transform: translateX([something])，但我不知道如何使它顺利循环。我怎样才能做到这一点？

标签： htmlcss

解决方案

这有帮助吗？

body {
  -webkit-box-align: center;
          align-items: center;
  background: #e3e3e3;
  display: -webkit-box;
  display: flex;
  height: 100vh;
  -webkit-box-pack: center;
          justify-content: center;
}

@-webkit-keyframes scroll {
  0% {
    -webkit-transform: translateX(0);
            transform: translateX(0);
  }
  100% {
    -webkit-transform: translateX(calc(-250px * 7));
            transform: translateX(calc(-250px * 7));
  }
}

@keyframes scroll {
  0% {
    -webkit-transform: translateX(0);
            transform: translateX(0);
  }
  100% {
    -webkit-transform: translateX(calc(-250px * 7));
            transform: translateX(calc(-250px * 7));
  }
}
.slider {
  background: white;
  box-shadow: 0 10px 20px -5px rgba(0, 0, 0, 0.125);
  height: 100px;
  margin: auto;
  overflow: hidden;
  position: relative;
  width: 960px;
}
.slider::before, .slider::after {
  background: -webkit-gradient(linear, left top, right top, from(white), to(rgba(255, 255, 255, 0)));
  background: linear-gradient(to right, white 0%, rgba(255, 255, 255, 0) 100%);
  content: "";
  height: 100px;
  position: absolute;
  width: 200px;
  z-index: 2;
}
.slider::after {
  right: 0;
  top: 0;
  -webkit-transform: rotateZ(180deg);
          transform: rotateZ(180deg);
}
.slider::before {
  left: 0;
  top: 0;
}
.slider .slide-track {
  -webkit-animation: scroll 40s linear infinite;
          animation: scroll 40s linear infinite;
  display: -webkit-box;
  display: flex;
  width: calc(250px * 14);
}
.slider .slide {
  height: 100px;
  width: 250px;
}
<div class="slider">
    <div class="slide-track">
        <div class="slide">
            <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/557257/1.png" height="100" width="250" alt="" />
        </div>
        <div class="slide">
            <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/557257/2.png" height="100" width="250" alt="" />
        </div>
        <div class="slide">
            <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/557257/3.png" height="100" width="250" alt="" />
        </div>
        <div class="slide">
            <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/557257/4.png" height="100" width="250" alt="" />
        </div>
        <div class="slide">
            <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/557257/5.png" height="100" width="250" alt="" />
        </div>
        <div class="slide">
            <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/557257/6.png" height="100" width="250" alt="" />
        </div>
        <div class="slide">
            <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/557257/7.png" height="100" width="250" alt="" />
        </div>
        <div class="slide">
            <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/557257/1.png" height="100" width="250" alt="" />
        </div>
        <div class="slide">
            <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/557257/2.png" height="100" width="250" alt="" />
        </div>
        <div class="slide">
            <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/557257/3.png" height="100" width="250" alt="" />
        </div>
        <div class="slide">
            <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/557257/4.png" height="100" width="250" alt="" />
        </div>
        <div class="slide">
            <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/557257/5.png" height="100" width="250" alt="" />
        </div>
        <div class="slide">
            <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/557257/6.png" height="100" width="250" alt="" />
        </div>
        <div class="slide">
            <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/557257/7.png" height="100" width="250" alt="" />
        </div>
    </div>
</div>

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