.head{
  height: 100vh;
  justify-content: center;
  align-items: center;
  display: flex;
}
.lxy_content{
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  z-index: 1;
}
.lxy {
  font-family: AlibabaPuHuiTi-Regular;
  letter-spacing: 3px;
  transition: .6s;
  font-size: 7vw;
  color: #f2f2f2;
  text-shadow: #fff 0 0 1px,
    #fff 0 0 2px;
  -webkit-animation: text-focus-in 1s cubic-bezier(0.550, 0.085, 0.680, 0.530) backwards;
  animation: text-focus-in 1s cubic-bezier(0.550, 0.085, 0.680, 0.530) backwards;
}
.lxy:hover {
  letter-spacing: 5px;
}

@-webkit-keyframes text-focus-in {
  0% {
    -webkit-filter: blur(12px);
    filter: blur(12px);
    opacity: 0;
  }

  100% {
    -webkit-filter: blur(0px);
    filter: blur(0px);
    opacity: 1;
  }
}

@keyframes text-focus-in {
  0% {
    -webkit-filter: blur(12px);
    filter: blur(12px);
    opacity: 0;
  }

  100% {
    -webkit-filter: blur(0px);
    filter: blur(0px);
    opacity: 1;
  }
}