jQuery css() method


jQuery css() method

##jQuery css() method

css() method sets or returns one or more style properties of the selected element.

Return CSS properties

To return the value of the specified CSS property, please use the following syntax:

css("propertyname");

The following example will return the background-color value of the first matching element:

Example

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<script src="http://libs.baidu.com/jquery/1.10.2/jquery.min.js">
</script>
<script>
$(document).ready(function(){
  $("button").click(function(){
    alert("背景颜色 = " + $("p").css("background-color"));
  });
});
</script>
</head>

<body>
<h2>这是一个标题</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>
<button>返回 p 元素的 background-color </button>
</body>
</html>

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##Set CSS properties
To set the specified CSS properties, 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>
<meta charset="utf-8">
<script src="http://libs.baidu.com/jquery/1.10.2/jquery.min.js">
</script>
<script>
$(document).ready(function(){
  $("button").click(function(){
    $("p").css("background-color","yellow");
  });
});
</script>
</head>

<body>
<h2>这是一个标题</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 background-color </button>
</body>
</html>

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Multiple settings CSS properties
If you need to set multiple CSS properties, please use the following syntax:

css({"propertyname":"value","propertyname ":"value",...});

The following example will set the background-color and font-size for all matching elements:

Example

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<script src="http://libs.baidu.com/jquery/1.10.2/jquery.min.js">
</script>
<script>
$(document).ready(function(){
  $("button").click(function(){
    $("p").css({"background-color":"yellow","font-size":"200%"});
  });
});
</script>
</head>

<body>
<h2>这是一个标题</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>为 p 元素设置多个样式</button>
</body>
</html>

Run Instance»
Click the "Run Instance" button to view the online instance