Conic gradient

#code/css

https://codepen.io/makzan/pen/LYYrrOJ

.cd {
  background: lightgrey;
  border-radius: 50%;
  
  background: conic-gradient(lightgrey,grey,lightgrey,grey,lightgrey,darkgrey,grey,lightgrey,grey,lightgrey,darkgrey,grey,lightgrey,grey,lightgrey,darkgrey,grey, lightgrey);
}