*{margin:0;padding:0;}
body{
  height:100vh;
  overflow:hidden;
}
.shootstar_body{
  position: absolute;
  top:0;
  left:0;
  width:100%;
  height:100%;
  /* background:#21acbb; */
  animation: animateBg 5s linear infinite;
  -webkit-animation: animateBg 5s linear infinite;
  -moz-animation: animateBg 5s linear infinite;
}
.shootstar_body span{
  position: absolute;
  top:50%;
  left:50%;
  height:4px;
  width:4px;
  background-color: #445568;
  border-radius:50%;
  box-shadow: 0 0 0 4px rgba(68,85,104,0.1),0 0 0 8px rgba(68,85,104,0.1),0 0 0 2px rgba(68,85,104,1);
  animation: animate 3s linear infinite;
  -webkit-animation: animate 3s linear infinite;
  -moz-animation: animate 3s linear infinite;
}
.shootstar_body span::before{
  content:'';
  position:absolute;
  top:50%;
  transform: translateY(-50%);
  width: 300px;
  height:3px;
  background: linear-gradient(90deg,#445568,transparent);
  background: -webkit-linear-gradient(90deg,#445568,transparent);
  background: -moz-linear-gradient(90deg,#445568,transparent);
}
.shootstar_body span:nth-child(1){
  top:0;
  right:0;
  left:initial;
  animation-delay: 0s;/*动画延迟时间*/
  animation-duration: 1s;/*动画时长*/
}
.shootstar_body span:nth-child(2){
  top:0;
  right:80px;
  left:initial;
  animation-delay: 0.2s;
  animation-duration: 3s;
}
.shootstar_body span:nth-child(3){
  top:80px;
  right:0;
  left:initial;
  animation-delay: 0.4s;
  animation-duration: 2s;
}
.shootstar_body span:nth-child(4){
  top:0;
  right:180px;
  left:initial;
  animation-delay: 0.6s;
  animation-duration: 1.5s;
}
.shootstar_body span:nth-child(5){
  top:0;
  right:400px;
  left:initial;
  animation-delay: 0.8s;
  animation-duration: 2.5s;
}
.shootstar_body span:nth-child(6){
  top:0;
  right:600px;
  left:initial;
  animation-delay: 1s;
  animation-duration: 3s;
}
.shootstar_body span:nth-child(7){
  top:300px;
  right:0;
  left:initial;
  animation-delay: 1.2s;
  animation-duration: 1.75s;
}
.shootstar_body span:nth-child(8){
  top:0;
  right:700px;
  left:initial;
  animation-delay: 1.4s;
  animation-duration: 1.25s;
}
.shootstar_body span:nth-child(9){
  top:0;
  right:1000px;
  left:initial;
  animation-delay: 0.75s;
  animation-duration: 2.25s;
}
.shootstar_body span:nth-child(10){
  top:0;
  right:450px;
  left:initial;
  animation-delay: 2.75s;
  animation-duration: 2.25s;
}
/*定义动画*/
@keyframes animateBg {
  0%,100%{
      transform: scale(1);
  }
  50%{
      transform: scale(1.2);
  }
}
@-webkit-keyframes animateBg {
  0%,100%{
      transform: scale(1);
  }
  50%{
      transform: scale(1.2);
  }
}
@keyframes animate {
  0%{
      transform: rotate(315deg) translateX(0);
      opacity: 1;
  }
  90%{opacity: 1;}
  100%{
      transform: rotate(315deg) translateX(-1000px);
      opacity: 0;
  }
}
@-webkit-keyframes animate {
  0%{
      transform: rotate(315deg) translateX(0);
      opacity: 1;
  }
  90%{opacity: 1;}
  100%{
      transform: rotate(315deg) translateX(-1000px);
      opacity: 0;
  }
}