How to use jquery to select the sub-element under the node: first open the corresponding code file; then use the ":eq()" selector in jquery to select the specified sub-element under the node. The syntax is "$("p:eq(1)").css("background-color"...)".
The operating environment of this tutorial: windows7 system, jquery1.12.0 version. This method is suitable for all brands of computers.
Recommended: "jquery Video Tutorial"
In jquery, you can use the :eq() selector to select the specified sub-element under the node, :eq() The selector selects elements with a specified index value. Index values start at 0, and all first elements have an index value of 0 (not 1).
This method is often used with other elements/selectors to select elements with a specific sequence number in a specified group.
Example:
<html>
<head>
<script type="text/javascript" src="/jquery/jquery.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$("p:eq(1)").css("background-color","#B2E0FF");
});
</script>
</head>
<body>
<html>
<body>
<h1>Welcome to My Homepage</h1>
<p class="intro">My name is Donald</p>
<p>I live in Duckburg</p>
<p>My best friend is Mickey</p>
<div id="choose">
Who is your favourite:
<ul>
<li>Goofy</li>
<li>Mickey</li>
<li>Pluto</li>
</ul>
</div>
</body>
</html>
</body>
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