#slp-preloader{
  position:fixed;
  inset:0;
  background:#ffffff;
  display:flex;
  align-items:center;
  justify-content:center;
  z-index:99999;
}

.slp-loader{
  width:40px;
  height:40px;
  border:3px solid #eee;
  border-top:3px solid #000;
  border-radius:50%;
  animation:slp-spin 0.8s linear infinite;
}

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