属性样式动画

<!-- xxx.hml -->
<div class="container">
  <div class="fade">
    <text>fading away</text>
  </div>
  <div class="bigger">
    <text>getting bigger</text>
  </div>
</div>

/* xxx.css */
.container {
  background-color:#F1F3F5;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
}
.fade{
  width: 30%;
  height: 200px;
  left: 35%;
  top: 25%;
  position: absolute;
  animation: 2s change infinite friction;
}
.bigger{
  width: 20%;
  height: 100px;
  background-color: blue;
  animation: 2s change1 infinite linear-out-slow-in;
}
text{
  width: 100%;
  height: 100%;
  text-align: center;
  color: white;
  font-size: 35px;
  animation: 2s change2 infinite linear-out-slow-in;
}
/* 颜色变化 */
@keyframes change{
  from {
    background-color: #f76160;
    opacity: 1;
  }
  to {
    background-color: #09ba07;
    opacity: 0;
  }
}
/* 父组件大小变化 */
@keyframes change1{
  0% {
    width: 20%;
    height: 100px;
  }
  100% {
    width: 80%;
    height: 200px;
  }
}  
/* 子组件文字缩放 */
@keyframes change2{
  0%{
   transform: scale(0);
  }
  100% {
    transform: scale(1.5);
  }
}