css parallax code example

Example 1: html static background

body {
  background-image: url("img_tree.gif");
  
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: fixed;
  
  background-size: cover;
}

Example 2: css parallax

header{
	background-image: url("recources/example.jpg");
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    background-attachment: fixed;
}