The backgroundAttachment
property sets or gets
whether to scroll or fix a background image with the content.
backgroundAttachment |
Yes | Yes | Yes | Yes | Yes |
Return the backgroundAttachment property:
var v = object.style.backgroundAttachment
Set the backgroundAttachment property:
object.style.backgroundAttachment=scroll|fixed|local|initial|inherit
Default Value: | scroll |
---|---|
Return Value: | A string representing background-attachment property |
CSS Version | CSS1 |
The following code shows how to set a background-image to be fixed.
<!DOCTYPE html>
<html>
<head>
<style>
body {<!--from w w w.j a v a2s. c o m-->
background: #f3f3f3 url('http://java2s.com/style/demo/border.png') no-repeat right top;
}
</style>
</head>
<body>
<h1>Hello World!</h1>
<button onclick="myFunction()">test</button>
<br>
<script>
function myFunction() {
document.body.style.backgroundAttachment = "fixed";
}
</script>
<p>test<br><br><br><br>test<br><br><br><br>
test<br><br><br><br>test<br><br><br><br>
</p>
</body>
</html>
The code above is rendered as follows:
The following code shows the difference between scroll and local background for a DIV element.
<!DOCTYPE html>
<html>
<head>
<style>
#myDIV {<!--from w w w .j a va2s . c om-->
width: 300px;
height: 300px;
background: lightblue url('http://java2s.com/style/demo/border.png') no-repeat;
color: white;
overflow: auto;
}
</style>
</head>
<body>
<form name="myForm">
<input type="radio" name="myAtt" value="scroll" onclick="myFunction()" checked>scroll
<input type="radio" name="myAtt" value="local" onclick="myFunction()">local
</form>
<div id="myDIV">
text <br/>text <br/>text <br/>text <br/>
text <br/>text <br/>text <br/>text <br/>
text <br/>text <br/>text <br/>text <br/>
</div>
<script>
function myFunction() {
if (document.forms["myForm"]["myAtt"][0].checked) {
document.getElementById("myDIV").style.backgroundAttachment = "scroll";
} else {
document.getElementById("myDIV").style.backgroundAttachment = "local";
}
}
</script>
</body>
</html>
The code above is rendered as follows:
The following code shows how to get the value of the background-attachment property.
<!DOCTYPE html>
<html>
<body style="background:#f3f3f3 url('http://java2s.com/style/demo/border.png') no-repeat fixed;">
<!-- ww w. j a va2 s.c o m-->
<h1>Hello World!</h1>
<p>The background-image is fixed.</p>
<p>The background-image is fixed.</p>
<p>The background-image is fixed.</p>
<p>The background-image is fixed.</p>
<p>The background-image is fixed.</p>
<p>The background-image is fixed.</p>
<button onclick="myFunction()">test</button>
<script>
function myFunction() {
console.log(document.body.style.backgroundAttachment);
}
</script>
</body>
</html>
The code above is rendered as follows: