Here you go.
here's a DEMO
and here's the CODE
Here's the css
.header {
background: url("http://fc04.deviantart.net/fs70/i/2013/266/7/3/sydneigh_logo_by_robberbutton-d6nmaox.png") top left no-repeat ,url("http://subtlepatterns.com/patterns/sandpaper.png") repeat-x;
background-size: 571px 125px, auto;
height:125px;
width: 100%;
}
notice how the background attribute has two shorthand backgrounds with images written out seperated by a comma. The first image is on top of the second image and so on.
The first property of attribute background-size only applies to the first property in the background attribute (the first image in the declared background attribute.) The second applies to the second image in the background attribute.
This works the same way with other background-properties such as background-repeat, and background-image.
Here's an article on having multiple background images:
http://www.css3.info/preview/multiple-backgrounds/