gristlabs_grist-core/app/client/logo.css

#grist-logo-wrapper {
  position: absolute;
  width: 100vw;
  height: 100vh;
  display: flex;
  background-color: var(--color-logo-bg);
}

.grist-logo {
  background: var(--color-bg);
  margin: auto;
  padding: 20px 28px;
}

.grist-logo-grain {
  display: inline-block;
  width: 42px;
  height: 40px;

  margin: 1px;

  border-radius: 22px 0 18px 0;
}

.grist-logo-grain.grain-flip {
  border-radius: 0 22px 0 18px;
}

.grist-logo-grain.grain-empty {
  visibility: hidden;
}

.grist-logo-grain.grain-col {
  background: var(--color-logo-col);
}

.grist-logo-grain.grain-row {
  background: var(--color-logo-row);
}

.grist-logo-grain.grain-cell {
  background: var(--color-logo-cell);
}

.grist-logo-grain {
  animation: spin-grain 3.2s linear infinite;
}

.grist-logo-grain.grain-2 { animation-delay: .4s; }
.grist-logo-grain.grain-3 { animation-delay: .8s; }
.grist-logo-grain.grain-4 { animation-delay: 1.2s; }
.grist-logo-grain.grain-5 { animation-delay: 0s; }
.grist-logo-grain.grain-6 { animation-delay: .2s; }
.grist-logo-grain.grain-7 { animation-delay: .6s; }
.grist-logo-grain.grain-8 { animation-delay: 1.0s; }
.grist-logo-grain.grain-9 { animation-delay: 1.4s; }


@keyframes spin-grain {
  0% {
    transform: rotateY(0deg);
  }
  25% {
    transform: rotateY(180deg);
  }
  50% {
    transform: rotateY(0deg);
  }
}