body {
  --pixel-number: 400;
  --pixel-size: 4px;
  align-items: center;
  display: flex;
  justify-content: center;
  margin: 0;
  height: 100vh;
  width: 100vw;
}
span {
  background-color: var(--color);
  opacity: 0;
  outline: 1px solid var(--color);
  position: absolute;
  top: 0;
  left: 0;
  translate: 0 0;
  transition: opacity 0.5s ease-in, translate 0.5s ease-out;
  height: var(--pixel-size);
  width: var(--pixel-size);
}
span.red {
  --color: #f25022;
}
span.green {
  --color: #7fba00;
}
span.blue {
  --color: #00a4ef;
}
span.yellow {
  --color: #ffb900;
}
span.animate {
  opacity: 1;
  translate: var(--left) var(--top);
}
.microsoft-logo {
  display: grid;
  gap: 6px;
  grid-template-columns: repeat(2, calc(var(--pixel-size) * 20));
  grid-template-rows: repeat(2, calc(var(--pixel-size) * 20));
}
.microsoft-logo > div {
  display: grid;
  grid-template: repeat(3, 1fr) / repeat(3, 1fr);
}