html,
body,
#app {
  height: 100%;
  margin: 0px;
  padding: 0px;
  /* background: #f3f3f4; */
}
body {
  min-width: 350px;
}
.chromeframe {
  margin: 0.2em 0;
  background: #ccc;
  color: #000;
  padding: 0.2em 0;
}
.loading_wrap{
  width: 80px;
  height: 40px;
  margin: -100px 0 0 -20px;
  /* margin-top:100px; */
  /* padding-top: 120px; */
  position: fixed;
  top: 50%;
  left: 50%;
}
.loading_wrap span{
  display: inline-block;
  width: 8px;
  height: 100%;
  border-radius: 4px;
  background: lightgreen;
  animation: load 1s ease infinite;
}
@keyframes load{
  0%,100%{
      height: 40px;
      background: lightgreen;
  }
  50%{
      height: 70px;
      margin: -15px 0;
      background: lightblue;
  }
}
.loading_wrap span:nth-child(2){
  animation-delay:0.2s;
}
.loading_wrap span:nth-child(3){
  animation-delay:0.4s;
}
.loading_wrap span:nth-child(4){
  animation-delay:0.6s;
}
.loading_wrap span:nth-child(5){
  animation-delay:0.8s;
}