background-color: #fafafa;
background-image: 
  radial-gradient(circle 3px at 3px 3px, rgba(212, 212, 212, 0.8) 100%, transparent 100%),
  radial-gradient(circle 3px at 19px 19px, rgba(212, 212, 212, 0.8) 100%, transparent 100%);
background-size: 32px 32px, 32px 32px;