How to modify z-index value in jquery: 1. Use css() method, syntax "$(selector).css("z-index","value")"; 2. Use attr() Method, syntax "$(selector).attr("style","z-index:value")".
The operating environment of this tutorial: windows7 system, jquery1.10.2 version, Dell G3 computer.
In jquery, you can use the css() or attr() method to modify the z-index value of the element.
#css() method sets one or more style properties of the selected element.
attr() method can set the attribute value of the selected element.
Example:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<style type="text/css">
img {
position: absolute;
left: 0px;
top: 0px;
z-index: -1;
}
</style>
<script src="js/jquery-1.10.2.min.js"></script>
<script type="text/javascript">
$(document).ready(function() {
$("button").click(function() {
// $("img").css("z-index","1");
$("img").attr("style","z-index:1;");
});
});
</script>
</head>
<body>
<h1>This is a heading</h1>
<img src="img/2.jpg" / alt="How to modify z-index value in jquery" >
<p>由于图像的 z-index 是 -1，因此它在文本的后面出现。</p><br /><br /><br /><br /><br /><br />
<button id="but1">改变z-index值，让图片在文字前</button>
</body>
</html>
Related tutorial recommendations: jQuery video tutorial
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