.transparent {
  background: linear-gradient(45deg, rgba(0, 0, 0, .1) 25%, transparent 0), linear-gradient(135deg, rgba(0, 0, 0, .1) 25%, transparent 0), linear-gradient(45deg, transparent 75%, rgba(0, 0, 0, .1) 0), linear-gradient(135deg, transparent 75%, rgba(0, 0, 0, .1) 0), #fff;
}