.pattern {
height: 100%;
background-size: 115px 115px;
background-repeat: repeat;
background-image:
linear-gradient( 45deg, #555555 25px, transparent 25px),
linear-gradient( -45deg, #555555 25px, transparent 25px),
linear-gradient( 135deg , #555555 25px, transparent 25px),
linear-gradient( 225deg, #555555 25px, transparent 25px),
linear-gradient(45deg, #000000 25px, transparent 25px),
linear-gradient( 225deg, #000000 25px, transparent 25px);
background-position:
70px -45px,
-45px -80px,
35px 70px,
-80px 35px,
35px -45px,
-45px 35px;
}
body {
background: url("/assets/course70/bamboo.jpg");
min-width: 555px;
min-height: 298px;
}
html,
body {
height: 100%;
margin: 0;
}