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Read and write css attributes of HTML elements

高洛峰Original: 2016-11-24 09:46:261466browse

jQuery’s css() method is used to set or read the css attributes of HTML elements.

The CSS syntax for reading elements is as follows:

css("propertyname");

For example, the following code gets the background color of the first

element.

[javascript]

$("p").css("background-color");

Use the following Syntax to set CSS properties of HTML elements:

css("propertyname", "value");

For example, the following code sets the background color to yellow for all

elements.

[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>

Read and write css attributes of HTML elements

css() also supports multiple CSS properties at the same time: its syntax is as follows:

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

For example:

[javascript] view plaincopyprint?

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

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

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