Pattern by catraco

1.container {
2  width: 100%;
3  height: 100%;
4  background: linear-gradient(
5      45deg,
6      orange 25%,
7      transparent 25%,
8      transparent 75%,
9      orange 75%,
10      orange
11    ),
12    linear-gradient(
13      45deg,
14      orange 25%,
15      transparent 25%,
16      transparent 75%,
17      orange 75%,
18      orange
19    );
20  background-size: 20px 20px;
21  background-position: 0 0, 10px 10px;
22}
23