CSS3 red and green plaid pattern

You can download the pattern or use the CSS3 code below (you can copy the text).
body {
/* CSS3 pattern provided by JonesPatterns.com */
background-image:
linear-gradient(90deg, rgba(255,0,0,.4) 0%, rgba(255,0,0,.4) 20%, rgba(200,200,200,.6) 20%, rgba(200,200,200,.6) 30%, rgba(255,0,0,.4) 30%, rgba(255,0,0,.4) 50%, transparent 50%),
linear-gradient(180deg, rgba(255,0,0,.4) 0%, rgba(255,0,0,.4) 20%, rgba(200,200,200,.6) 20%, rgba(200,200,200,.6) 30%, rgba(255,0,0,.4) 30%, rgba(255,0,0,.4) 50%, transparent 50%);
background-color: green;
background-size: 60px 60px;
}