m3graph/public/assets/css/lds-grid.css

.lds-grid {
  position: absolute;
  display: block;
  left: calc(50% - 40px);
  top: calc(50% - 90px);
  width: 80px;
  height: 80px;
}
.lds-grid div {
  position: absolute;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #737374;
  animation: lds-grid 1.2s linear infinite;
}
.lds-grid div:nth-child(1) {
  top: 8px;
  left: 8px;
  animation-delay: 0s;
}
.lds-grid div:nth-child(2) {
  top: 8px;
  left: 32px;
  animation-delay: -0.4s;
}
.lds-grid div:nth-child(3) {
  top: 8px;
  left: 56px;
  animation-delay: -0.8s;
}
.lds-grid div:nth-child(4) {
  top: 32px;
  left: 8px;
  animation-delay: -0.4s;
}
.lds-grid div:nth-child(5) {
  top: 32px;
  left: 32px;
  animation-delay: -0.8s;
}
.lds-grid div:nth-child(6) {
  top: 32px;
  left: 56px;
  animation-delay: -1.2s;
}
.lds-grid div:nth-child(7) {
  top: 56px;
  left: 8px;
  animation-delay: -0.8s;
}
.lds-grid div:nth-child(8) {
  top: 56px;
  left: 32px;
  animation-delay: -1.2s;
}
.lds-grid div:nth-child(9) {
  top: 56px;
  left: 56px;
  animation-delay: -1.6s;
}
.lds-grid div:nth-child(10) {
  display: none;
}
.lds-grid div:nth-child(11) {
  display: none;
}
.lds-grid div:nth-child(12) {
  display: none;
}
@keyframes lds-grid {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}