*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  display: flex;
  justify-content: center;
  margin: 10px;
  background-color: hsl(0, 0%, 12%);
}
section {
  background-color: transparent;
  display: flex;
  flex-flow: row wrap;
  align-items: flex-start;
  font-size: 0;
  height: 100%;
  width: 1000px;
  filter: contrast(1.2);
}
div {
  flex: 0 1 auto;
  color: hsl(0, 0%, 85%);
  background-color: hsl(210, 100%, 25%);
  min-width: min-content;
}
section:hover > div:not(:hover) {
  transition: all 0.50s ease;
  filter: grayscale(0.85);
  transform: scale(0.9);
}
section > div:hover {
  transition: all 0.15s ease;
  z-index: 100;
  box-shadow: 0 0 2px hsla(0, 0%, 0%, 0.5);
  transform: scale(1.1);
}
section:not(:hover) > div {
  transition: all 0.5s ease;
}