1.container {
2  --color: #c09bd8;
3  background-color: #9f84bd;
4  width: 100%;
5  height: 100%;
6  position: relative;
7}
8.container::after {
9  content: "";
10  position: absolute;
11  inset: 0;
12  opacity: 0.8;
13  background: radial-gradient(circle, var(--color) 15%, transparent 15%),
14    radial-gradient(circle, var(--color) 15%, transparent 15%) 6px -6px,
15    radial-gradient(circle, var(--color) 15%, transparent 15%) 6px -1px,
16    radial-gradient(circle, var(--color) 15%, transparent 15%) 10px 2px,
17    radial-gradient(circle, var(--color) 15%, transparent 15%) 14px 5px,
18    radial-gradient(circle, var(--color) 15%, transparent 15%) 18px 8px,
19    radial-gradient(circle, var(--color) 15%, transparent 15%) 18px 12px,
20    radial-gradient(circle, var(--color) 15%, transparent 15%) 23px 6px;
21  background-size: 50px 50px;
22}
23