Centering a background image, using CSS

Question

I want to center a background image. There is no div used, this is the CSS style:

body{
    background-position:center;
    background-image:url(../images/im         


        

Answer 1

I use this code, it works nice

html, body {
  height: 100%;
  width: 100%;
  padding: 0;
  margin: 0;
  background: black url(back2.png) center center no-repeat;;
-webkit-background-size: cover;
-moz-background-size: cover;
-o-background-size: cover;
background-size: cover;
}