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The way jquery adds css attributes is the css() method. This method can set or return one or more style attributes of the selected element. The syntax for setting and adding css attributes is "css("propertyname", "value");".
The operating environment of this article: Windows7 system, jquery3.2.1&&css3 version, DELL G3 computer
jQuery css() method
css() method sets or returns one or more style properties of the selected element.
Return CSS properties
If you need to return the value of the specified CSS property, please use the following syntax:
css("propertyname");Set CSS properties
To set a specific CSS property, please use the following syntax:
css("propertyname","value");The following example will set the background-color value for all matching elements:
Example
<!DOCTYPE html>
<html>
<head>
<script src="/jquery/jquery-1.11.1.min.js"></script>
<script>
$(document).ready(function(){
$("button").click(function(){
$("p").css("background-color","yellow");
});
});
</script>
</head>
<body>
<h2>这是标题</h2>
<p style="background-color:#ff0000">这是一个段落。</p>
<p style="background-color:#00ff00">这是一个段落。</p>
<p style="background-color:#0000ff">这是一个段落。</p>
<p>这是一个段落。</p>
<button>设置 p 元素的背景色</button>
</body>
</html>Effect:
Recommended learning: "jquery video tutorial"
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