微信小程序18__一个启动动画

效果图如下：

 

相关wxml代码：

  
    loading
  

wxss代码：

.page{
  margin:0;
  padding:0;
  background:white; /***#34495e;**/
  height: 100vh;
  display:flex;
  align-items:center;
  justify-content: center;
  font-family: "montserrat", sans-serif;
}


.loading{
  width: 200px;
  height: 200px;
  box-sizing: border-box;
  border-radius: 50%;
  border-top: 7px solid #e74c3c;
  position: relative;
  animation:  a1 2s linear infinite;
}

.loading::before, .loading::after{
  content:'';
  width: 200px;
  height: 200px;
  background:transparent;
  position: absolute;
  left:0;
  top:-10px;
  box-sizing: border-box;
  border-radius: 50%;
}
.loading::before{
  border-top: 7px solid #e67e22;
  transform: rotate(120deg);
}
.loading::after{
  border-top: 7px solid #3498db;
  transform:rotate(240deg);
}
.loading text{
  position: absolute;
  width:200px;
  height:200px;
  text-align: center;
  line-height:200px;
  animation: a2 2s linear  infinite;
}


@keyframes a1{
  to{
    transform:rotate(360deg);
  }
}

@keyframes a2{
  to{
    transform: rotate(-360deg);
  }
}