Multiple Background Images

style.css

body {
  background: url(image3.png) 10px 10px no-repeat,  /* On top,    like z-index: 3; */
              url(image2.png) 10px 10px no-repeat,  /*            like z-index: 2; */
              url(image1.png);                      /* On bottom, like z-index: 1; */
}