jQuery 的css()方法用来设置或读取HTML元素的css属性。
读取元素的CSS语法语法如下：
css(“propertyname“);
比如下面代码取得第一个
元素的背景颜色。
[javascript]
$("p").css("background-color");
$("p").css("background-color");
使用下面的语法来设置HTML元素的CSS属性：
css(“propertyname“,”value“);
例如，下面代码为所有
元素设置背景色为黄色。
[html]
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>JQuery Demo</title>
<script src="scripts/jquery-1.9.1.js"></script>
<script>
$(document).ready(function () {
$("button").click(function () {
$("p").css("background-color", "yellow");
});
});
</script>
</head>
<body>
<h2>This is a heading</h2>
<p style="background-color: #ff0000">This is a paragraph.</p>
<p style="background-color: #00ff00">This is a paragraph.</p>
<p style="background-color: #0000ff">This is a paragraph.</p>
<p>This is a paragraph.</p>
<button>Set background-color of p</button>
</body>
</html>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>JQuery Demo</title>
<script src="scripts/jquery-1.9.1.js"></script>
<script>
$(document).ready(function () {
$("button").click(function () {
$("p").css("background-color", "yellow");
});
});
</script>
</head>
<body>
<h2>This is a heading</h2>
<p style="background-color: #ff0000">This is a paragraph.</p>
<p style="background-color: #00ff00">This is a paragraph.</p>
<p style="background-color: #0000ff">This is a paragraph.</p>
<p>This is a paragraph.</p>www.2cto.com
<button>Set background-color of p</button>
</body>
</html>
css()也支持同时多个CSS属性：其语法如下：
css({“propertyname“:”value“,”propertyname“:”value“,…});
比如：
[javascript] view plaincopyprint?
$("p").css({"background-color":"yellow","font-size":"200%"});
$("p").css({"background-color":"yellow","font-size":"200%"});
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