Box Shadow

img {
  box-shadow: $shadow;
  // box-shadow: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
}

img:hover {
  box-shadow: $shadow-h;
  // box-shadow: 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23);
}