body {
	background:
linear-gradient(135deg, #ECEDDC 25%, transparent 25%) -50px 0,
linear-gradient(225deg, #ECEDDC 25%, transparent 25%) -50px 0,
linear-gradient(315deg, #ECEDDC 25%, transparent 25%),
linear-gradient(45deg, #ECEDDC 25%, transparent 25%);
background-size: 100px 100px;
background-color: #EC173A;
}

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

This Pen doesn't use any external JavaScript resources.