<div></div>
body{
background:#000;
}
div{
height: 100vh;
background-color: #000;
background-image: repeating-linear-gradient(transparent, transparent 50px, rgba(0,255,255, .25) 50px,rgba(0,255,255, .25) 100px), repeating-linear-gradient(90deg, rgba(0,255,255, .25), rgba(0,255,255, .25) 50px, transparent 50px, transparent 100px), repeating-linear-gradient(135deg, transparent, transparent 4px, rgba(255,255,255,.1) 4px, rgba(255,255,255,.1) 8px), repeating-linear-gradient(45deg, transparent, transparent 4px, rgba(255,255,255,.1) 4px, rgba(255,255,255,.1) 8px), repeating-linear-gradient(transparent, transparent 20px, rgba(100,250,250, .2) 20px, rgba(100,250,250, .2) 21px, transparent 21px,transparent 29px, rgba(100,250,250, .2) 29px, rgba(100,250,250, .2) 30px, transparent 30px, transparent 50px), repeating-linear-gradient(90deg, transparent, transparent 20px, rgba(100,250,250, .2) 20px, rgba(100,250,250, .2) 21px, transparent 21px,transparent 29px, rgba(100,250,250, .2) 29px, rgba(100,250,250, .2) 30px, transparent 30px, transparent 50px);
}
This Pen doesn't use any external CSS resources.
This Pen doesn't use any external JavaScript resources.