<body> <h1>Hello World!</h1> <p>Here, a backgound image is repeated only horizontally!</p> </body>
body {
background-image: url("http://timoday.edu.vn/wp-content/uploads/2017/06/Green-White-Striped-Wallpaper-New-wide-stripe-wallpaper-157912.jpg");
background-repeat: repeat-x;
}