SOURCE

body{
background:
linear-gradient(324deg, #232927 4%,   transparent 4%) -70px 43px,
linear-gradient( 36deg, #232927 4%,   transparent 4%) 30px 43px,
linear-gradient( 72deg, #e3d7bf 8.5%, transparent 8.5%) 30px 43px,
linear-gradient(288deg, #e3d7bf 8.5%, transparent 8.5%) -70px 43px,
linear-gradient(216deg, #e3d7bf 7.5%, transparent 7.5%) -70px 23px,
linear-gradient(144deg, #e3d7bf 7.5%, transparent 7.5%) 30px 23px,

linear-gradient(324deg, #232927 4%,   transparent 4%) -20px 93px,
linear-gradient( 36deg, #232927 4%,   transparent 4%) 80px 93px,
linear-gradient( 72deg, #e3d7bf 8.5%, transparent 8.5%) 80px 93px,
linear-gradient(288deg, #e3d7bf 8.5%, transparent 8.5%) -20px 93px,
linear-gradient(216deg, #e3d7bf 7.5%, transparent 7.5%) -20px 73px,
linear-gradient(144deg, #e3d7bf 7.5%, transparent 7.5%) 80px 73px;
background-color: #232927;
background-size: 100px 100px;
}