body{
background: 
 radial-gradient(circle at 50% 0%, transparent 20%, rgba(255,255,255,.3) 21%, rgb(0,84,166) 34%, transparent 35%, transparent) 0 -50px,
radial-gradient(circle at 50% 100%, transparent 20%, rgb(0,84,166) 21%, rgba(255,255,255,.3) 34%, transparent 35%, transparent) -50px 25px;
background-color: rgb(0,114,188);
background-size:100px 75px;
}