jQuery通过CSS()方法给指定的元素同时设置多个样式

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<!DOCTYPE html>

<html>

<head>

<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.1/jquery.min.js">

</script>

<script>

$(document).ready(function(){

$("button").click(function(){

$("p").css({"background-color":"yellow","font-size":"200%"});

});

</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 multiple styles for p</button>

</body>

</html>