background image for website js code example
Example 1: js background image
document.body.style.backgroundImage = "url('img_tree.png')";
Example 2: set an attribute background image javascript
function bg() {
var imgCount = 3;
var dir = 'http://local.statamic.com/_themes/img/';
// I changed your random generator
//floor: helps getting a random integer
var randomCount = (Math.floor(Math.random() * imgCount));
// I changed your array to the literal notation. The literal notation is preferred.
var images = ['001.png', '002.png', '003.png'];
// I changed this section to just define the style attribute the best way I know how.
document.getElementById('banner').setAttribute("style", "background-image: url(" + dir + images[randomCount] + ");background-repeat: no-repeat;background-size: 388px 388px");
}
// Don't forget to run the function instead of just defining it.
bg();
Example 3: adding background image css
/* Answer to: "adding background image css" */
/*
The background-image property sets one or more background images
for an element.
By default, a background-image is placed at the top-left corner
of an element, and repeated both vertically and horizontally.
Tip: The background of an element is the total size of the
element, including padding and border (but not the margin).
Tip: Always set a background-color to be used if the image is
unavailable.
*/
/* Set a background-image for the <body> element: */
body {
background-image: url("paper.gif");
background-color: #cccccc;
}
/* Set two background images for the <body> element: */
body {
background-image: url("img_tree.gif"), url("paper.gif");
background-color: #cccccc;
}