这些css 动画效果你一定要收藏

1.物体滚动效果

 <div class="box">
    <div class="boxLoading"></div>
  </div>

<style>
  .boxLoading {
    width: 50px;
    height: 50px;
    margin: auto;
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
  }

  .boxLoading:before {
    content: '';
    width: 50px;
    height: 5px;
    background: #fff;
    opacity: 0.7;
    position: absolute;
    top: 59px;
    left: 0;
    border-radius: 50%;
    animation: shadow .5s linear infinite;
  }

  .boxLoading:after {
    content: '';
    width: 50px;
    height: 50px;
    background: #075222;
    animation: animate 0.6s linear infinite;
    position: absolute;
    top: 0;
    left: 0;
    border-radius: 3px;
  }

  @keyframes animate {
    17% {
      border-bottom-right-radius: 3px;
    }

    25% {
      transform: translateY(9px) rotate(22.5deg);
    }

    50% {
      transform: translateY(18px) scale(1, .9) rotate(45deg);
      border-bottom-right-radius: 40px;
    }

    75% {
      transform: translateY(9px) rotate(67.5deg);
    }

    100% {
      transform: translateY(0) rotate(90deg);
    }
  }

  @keyframes shadow {

    0%,
    100% {
      transform: scale(1, 1);
    }

    50% {
      transform: scale(1.2, 1);
    }
  }
</style>

2.音乐播放效果

  <div class="music">
    <span></span>
    <span></span>
    <span></span>
    <span></span>
    <span></span>
    <span></span>
    <span></span>
    <span></span>
    <span></span>
    <span></span>
    <span></span>
    <span></span>
    <span></span>
    <span></span>
    <span></span>
  </div>

<style>
  .music {
    position: absolute;
    top: 0px;
    bottom: 0px;
    left: 0px;
    right: 0px;
    margin: auto;
    width: 175px;
    height: 100px;
  }

  .music span {
    display: block;
    background: #e04960;
    width: 7px;
    height: 100%;
    border-radius: 14px;
    margin-right: 5px;
    float: left;
  }

  .music span:last-child {
    margin-right: 0px;
  }

  .music span:nth-child(1) {
    animation: load 2.5s 1.4s infinite linear;
  }

  .music span:nth-child(2) {
    animation: load 2.5s 1.2s infinite linear;
  }

  .music span:nth-child(3) {
    animation: load 2.5s 1s infinite linear;
  }

  .music span:nth-child(4) {
    animation: load 2.5s 0.8s infinite linear;
  }

  .music span:nth-child(5) {
    animation: load 2.5s 0.6s infinite linear;
  }

  .music span:nth-child(6) {
    animation: load 2.5s 0.4s infinite linear;
  }

  .music span:nth-child(7) {
    animation: load 2.5s 0.2s infinite linear;
  }

  .music span:nth-child(8) {
    animation: load 2.5s 0s infinite linear;
  }

  .music span:nth-child(9) {
    animation: load 2.5s 0.2s infinite linear;
  }

  .music span:nth-child(10) {
    animation: load 2.5s 0.4s infinite linear;
  }

  .music span:nth-child(11) {
    animation: load 2.5s 0.6s infinite linear;
  }

  .music span:nth-child(12) {
    animation: load 2.5s 0.8s infinite linear;
  }

  .music span:nth-child(13) {
    animation: load 2.5s 1s infinite linear;
  }

  .music span:nth-child(14) {
    animation: load 2.5s 1.2s infinite linear;
  }

  .music span:nth-child(15) {
    animation: load 2.5s 1.4s infinite linear;
  }

  @keyframes load {
    0% {
      background: #409EFF;
      transform: scaleY(0.08);
    }

    50% {
      background: #F56C6C;

      transform: scaleY(1);
    }

    100% {
      background: #409EFF;
      transform: scaleY(0.08);
    }
  }
</style>

3.交错动画loading效果

 <div class="loading">
      <div class="drop"></div>
      <div class="drop"></div>
      <div class="drop"></div>
      <div class="drop"></div>
      <div class="drop"></div>
    </div>

 <style lang="scss" scoped>
body {
  display: flex;
  height: 100vh;
  justify-content: center;
  align-items: center;
  background: #222;
}

.loading {
  position: fixed;
  left: 500px;
  right: 0;
  margin: 0 auto;
  top: 300px;
  $colors: #7ef9ff,
  #89cff0,
  #4682b4,
  #0f52ba,
  #000080;
  display: flex;

  .drop {
    position: relative;
    width: 2em;
    height: 2em;
    margin: 0.8em;
    border-radius: 50%;

    &::before {
      position: absolute;
      content: "";
      width: 100%;
      height: 100%;
      background: inherit;
      border-radius: inherit;
      animation: wave 2s ease-out infinite;
    }

    @for $i from 1 through 5 {
      &:nth-child(#{$i}) {
        background: nth($colors, $i);

        &::before {
          animation-delay: $i * 0.2s;
        }
      }
    }
  }
}

@keyframes wave {

  50%,
  75% {
    transform: scale(2.5);
  }

  80%,
  100% {
    opacity: 0;
  }
}
</style>

4.小球移动

 <div class="move">
      <span></span>
    </div>

.move {
  width: 150px;
  height: 4px;
  border-radius: 2px;
  margin: 0 auto;
  margin-top: 300px;
  position: relative;
  background: #409eff;
  -webkit-animation: changeBgColor 1.04s ease-in infinite alternate;
  animation: changeBgColor 1.04s ease-in infinite alternate;
}
.move span {
  display: inline-block;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: #409eff;
  position: absolute;
  margin-top: -30px;
  margin-left: -8px;
  -webkit-animation: changePosition 1.04s ease infinite alternate;
  animation: changePosition 1.04s ease infinite alternate;
}
@-webkit-keyframes changeBgColor {
  0% {
    background: lightblue;
  }
  50% {
    background: red;
  }
  100% {
    background: #409eff;
  }
}
@-webkit-keyframes changePosition {
  0% {
    background: lightblue;
  }
  50% {
    background: red;
  }
  100% {
    margin-left: 142px;
    background: #409eff;
  }
}

5.电影闭幕效果(这个gif太大了，只能搞个图片将就一下，各位ikun一看就懂)

  <div class="container">
      <div class="box"></div>
      <div class="text">
        <p>为坤护航,伴坤远航</p>
        <br>
        <p>你如此黑我家哥哥,难道不吃我家哥哥的肉吗?</p>
      </div>
    </div>

 .box {
  height: 100%;
  width: 100%;
  position: absolute;
  background: url('https://img0.baidu.com/it/u=2771945787,9120044&fm=253&fmt=auto&app=120&f=JPEG?w=800&h=500') no-repeat;
  background-size: cover;
  animation: fade-away 3s linear forwards;  
}
.text {
  position: absolute;
  line-height: 55px;
  color: #fff;
  font-size: 36px;
  text-align: center;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  opacity: 0;
  animation: show 2s cubic-bezier(0.74, -0.1, 0.86, 0.83) forwards;
}

@keyframes fade-away {
  30% {
    filter: brightness(1);
  }
  100% {
    filter: brightness(0);
  }
}
@keyframes show {
  20% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}