background-color: #0d1117;
background-image: 
  radial-gradient(ellipse at center, transparent 36%, rgba(0,0,0,0.27999999999999997) 100%),
  radial-gradient(circle 2px at 2px 2px, rgba(0, 255, 65, 0.5) 100%, transparent 100%),
  radial-gradient(circle 2px at 14px 14px, rgba(0, 255, 65, 0.5) 100%, transparent 100%);
background-size: 100% 100%, 24px 24px, 24px 24px;