最近项目需要，需要写一些动画效果，然后对animation的知识巩固了一下。

animation

animation-name 需要绑定到选择器的 keyframe 名称

animation-duration 完成动画所需要的时间

animation-delay 设置延长时间

animation-timing-function 动画的运动速度

linear 动画从头到尾的速度是相同的。
ease 默认。动画以低速开始，然后加快，在结束前变慢。
ease-in 动画以低速开始。
ease-out 动画以低速结束。
ease-in-out 动画以低速开始和结束。
cubic-bezier(n,n,n,n) 在 cubic-bezier 函数中自己的值。可能的值是从 0 到 1 的数值。

animation-iteration-count 动画播放的次数

infinite 规定动画应该无限次播放。

animation-direction 轮流反向播放动画

normal 默认值。动画应该正常播放。
alternate 动画应该轮流反向播放。

--- 好吧 这个就介绍到这里吧 如果还有什么疑问可以自己去了解一下

1.animation1

<div class="spinner">
    <div class="rect1"></div>
    <div class="rect2"></div>
    <div class="rect3"></div>
    <div class="rect4"></div>
    <div class="rect5"></div>
</div>

<style>
.spinner {
  margin: 100px auto;
  width: 50px;
  height: 60px;
  text-align: center;
  font-size: 10px;
}
 
.spinner > div {
  background-color: #67CF22;
  height: 100%;
  width: 6px;
  display: inline-block;
   
  -webkit-animation: stretchdelay 1.2s infinite ease-in-out;
  animation: stretchdelay 1.2s infinite ease-in-out;
}
 
.spinner .rect2 {
  -webkit-animation-delay: -1.1s;
  animation-delay: -1.1s;
}
 
.spinner .rect3 {
  -webkit-animation-delay: -1.0s;
  animation-delay: -1.0s;
}
 
.spinner .rect4 {
  -webkit-animation-delay: -0.9s;
  animation-delay: -0.9s;
}
 
.spinner .rect5 {
  -webkit-animation-delay: -0.8s;
  animation-delay: -0.8s;
}
 
@-webkit-keyframes stretchdelay {
  0%, 40%, 100% { -webkit-transform: scaleY(0.4) } 
  20% { -webkit-transform: scaleY(1.0) }
}
 
@keyframes stretchdelay {
  0%, 40%, 100% {
    transform: scaleY(0.4);
    -webkit-transform: scaleY(0.4);
  }  20% {
    transform: scaleY(1.0);
    -webkit-transform: scaleY(1.0);
  }
}
</style>

2.animation2

<div class="spinner"></div>

<style>
.spinner {
  width: 60px;
  height: 60px;
  background-color: #67CF22;
 
  margin: 100px auto;
  -webkit-animation: rotateplane 1.2s infinite ease-in-out;
  animation: rotateplane 1.2s infinite ease-in-out;
}
 
@-webkit-keyframes rotateplane {
  0% { -webkit-transform: perspective(120px) }
  50% { -webkit-transform: perspective(120px) rotateY(180deg) }
  100% { -webkit-transform: perspective(120px) rotateY(180deg)  rotateX(180deg) }
}
 
@keyframes rotateplane {
  0% {
    transform: perspective(120px) rotateX(0deg) rotateY(0deg);
    -webkit-transform: perspective(120px) rotateX(0deg) rotateY(0deg)
  } 50% {
    transform: perspective(120px) rotateX(-180.1deg) rotateY(0deg);
    -webkit-transform: perspective(120px) rotateX(-180.1deg) rotateY(0deg)
  } 100% {
    transform: perspective(120px) rotateX(-180deg) rotateY(-179.9deg);
    -webkit-transform: perspective(120px) rotateX(-180deg) rotateY(-179.9deg);
  }
}
</style>

3.animation3

<div class="spinner">
  <div class="double-bounce1"></div>
  <div class="double-bounce2"></div>
</div>
<style>
.spinner {
  width: 60px;
  height: 60px;
 
  position: relative;
  margin: 100px auto;
}
 
.double-bounce1, .double-bounce2 {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background-color: #67CF22;
  opacity: 0.6;
  position: absolute;
  top: 0;
  left: 0;
   
  -webkit-animation: bounce 2.0s infinite ease-in-out;
  animation: bounce 2.0s infinite ease-in-out;
}
 
.double-bounce2 {
  -webkit-animation-delay: -1.0s;
  animation-delay: -1.0s;
}
 
@-webkit-keyframes bounce {
  0%, 100% { -webkit-transform: scale(0.0) }
  50% { -webkit-transform: scale(1.0) }
}
 
@keyframes bounce {
  0%, 100% {
    transform: scale(0.0);
    -webkit-transform: scale(0.0);
  } 50% {
    transform: scale(1.0);
    -webkit-transform: scale(1.0);
  }
}
</style>

4.animation4

<div class="spinner">
  <div class="dot1"></div>
  <div class="dot2"></div>
</div>

<style>
.spinner {
  margin: 100px auto;
  width: 90px;
  height: 90px;
  position: relative;
  text-align: center;
   
  -webkit-animation: rotate 2.0s infinite linear;
  animation: rotate 2.0s infinite linear;
}
 
.dot1, .dot2 {
  width: 60%;
  height: 60%;
  display: inline-block;
  position: absolute;
  top: 0;
  background-color: #67CF22;
  border-radius: 100%;
   
  -webkit-animation: bounce 2.0s infinite ease-in-out;
  animation: bounce 2.0s infinite ease-in-out;
}
 
.dot2 {
  top: auto;
  bottom: 0px;
  -webkit-animation-delay: -1.0s;
  animation-delay: -1.0s;
}
 
@-webkit-keyframes rotate { 100% { -webkit-transform: rotate(360deg) }}
@keyframes rotate { 100% { transform: rotate(360deg); -webkit-transform: rotate(360deg) }}
 
@-webkit-keyframes bounce {
  0%, 100% { -webkit-transform: scale(0.0) }
  50% { -webkit-transform: scale(1.0) }
}
 
@keyframes bounce {
  0%, 100% {
    transform: scale(0.0);
    -webkit-transform: scale(0.0);
  } 50% {
    transform: scale(1.0);
    -webkit-transform: scale(1.0);
  }
}
</style>

5.animation5

<div class="spinner">
  <div class="bounce1"></div>
  <div class="bounce2"></div>
  <div class="bounce3"></div>
</div>
<style>
.spinner {
  margin: 100px auto 0;
  width: 150px;
  text-align: center;
}
 
.spinner > div {
  width: 30px;
  height: 30px;
  background-color: #67CF22;
 
  border-radius: 100%;
  display: inline-block;
  -webkit-animation: bouncedelay 1.4s infinite ease-in-out;
  animation: bouncedelay 1.4s infinite ease-in-out;
  /* Prevent first frame from flickering when animation starts */
  -webkit-animation-fill-mode: both;
  animation-fill-mode: both;
}
 
.spinner .bounce1 {
  -webkit-animation-delay: -0.32s;
  animation-delay: -0.32s;
}
 
.spinner .bounce2 {
  -webkit-animation-delay: -0.16s;
  animation-delay: -0.16s;
}
 
@-webkit-keyframes bouncedelay {
  0%, 80%, 100% { -webkit-transform: scale(0.0) }
  40% { -webkit-transform: scale(1.0) }
}
 
@keyframes bouncedelay {
  0%, 80%, 100% {
    transform: scale(0.0);
    -webkit-transform: scale(0.0);
  } 40% {
    transform: scale(1.0);
    -webkit-transform: scale(1.0);
  }
}
</style>