首屏 loading 加载动画

最新推荐文章于 2025-06-02 09:06:27 发布

Jredreamer

最新推荐文章于 2025-06-02 09:06:27 发布

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分类专栏： Web前端

本文链接：https://blog.youkuaiyun.com/zhang_Red/article/details/80100046

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本文介绍了一个使用CSS实现的加载动画效果，通过伪元素和关键帧动画实现了动态加载指示器，并为不同的加载圆点设置了颜色和延时，使得整体效果更加丰富且具有视觉吸引力。

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<div id="app">
      <div class="loading">
        <h2>玩命加载中...</h2>
        <span></span>
        <span></span>
        <span></span>
        <span></span>
        <span></span>
        <span></span>
        <span></span>
      </div>
    </div>

CSS：

.loading {
  text-align: center;
  padding-top: 10%;
  display: block;
}

/*
 * Loading Dots
 * Can we use pseudo elements here instead :after?
 */
.loading span {
  display: inline-block;
  vertical-align: middle;
  width: .6em;
  height: .6em;
  margin: .19em;
  background: #007DB6;
  border-radius: .6em;
  -webkit-animation: loading 1s infinite alternate;
  -moz-animation: loading 1s infinite alternate;
  -o-animation: loading 1s infinite alternate;
  -ms-animation: loading 1s infinite alternate;
          animation: loading 1s infinite alternate;    
}

/*
 * Dots Colors
 * Smarter targeting vs nth-of-type?
 */
.loading span:nth-of-type(2) {
  background: #008FB2;
  -webkit-animation-delay: 0.2s;
  -moz-animation-delay: 0.2s;
  -o-animation-delay: 0.2s;
  -ms-animation-delay: 0.2s;
          animation-delay: 0.2s;
}
.loading span:nth-of-type(3) {
  background: #009B9E;
  -webkit-animation-delay: 0.4s;
  -moz-animation-delay: 0.4s;
  -o-animation-delay: 0.4s;
  -ms-animation-delay: 0.4s;
          animation-delay: 0.4s;
}
.loading span:nth-of-type(4) {
  background: #00A77D;
  -webkit-animation-delay: 0.4s;
  -moz-animation-delay: 0.6s;
  -o-animation-delay: 0.6s;
  -ms-animation-delay: 0.6s;
          animation-delay: 0.6s;
}
.loading span:nth-of-type(5) {
  background: #00B247;
  -webkit-animation-delay: 0.8s;
  -moz-animation-delay: 0.8s;
  -o-animation-delay: 0.8s;
  -ms-animation-delay: 0.8s;
          animation-delay: 0.8s;
}
.loading span:nth-of-type(6) {
  background: #5AB027;
  -webkit-animation-delay: 1.0s;
  -moz-animation-delay: 1.0s;
  -o-animation-delay: 1.0s;
  -ms-animation-delay: 1.0s;
          animation-delay: 1.0s;
}
.loading span:nth-of-type(7) {
  background: #A0B61E;
  -webkit-animation-delay: 1.2s;
  -moz-animation-delay: 1.2s;
  -o-animation-delay: 1.2s;
  -ms-animation-delay: 1.2s;
          animation-delay: 1.2s;
}

/*
 * Animation keyframes
 * Use transition opacity instead of keyframes?
 */
@-webkit-keyframes loading {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}
@-moz-keyframes loading {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}
@-o-keyframes loading {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}
@-ms-keyframes loading {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}
@keyframes loading {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}