Pattern by Efrain2112

1.container {
2  width: 100%;
3  height: 100%;
4  --size: 150px; /* control the size */
5  --color: #d1bdbd;
6
7  background: radial-gradient(
8      circle at 15% 30%,
9      transparent 40%,
10      var(--color) 41%
11    ),
12    radial-gradient(circle at 85% 30%, transparent 40%, var(--color) 41%),
13    radial-gradient(circle at 50% 70%, transparent 40%, var(--color) 41%),
14    radial-gradient(circle at 15% 70%, transparent 40%, var(--color) 41%),
15    radial-gradient(circle at 85% 70%, transparent 40%, var(--color) 41%),
16    linear-gradient(
17      45deg,
18      var(--color) 25%,
19      rgba(0, 0, 0, 0.067) 0,
20      rgba(0, 0, 0, 0.067) 50%,
21      var(--color) 0,
22      var(--color) 75%,
23      #1111 0,
24      #1111 100%,
25      var(--color) 0
26    );
27  background-size: var(--size) var(--size);
28}
29