CSSStyleDeclaration getPropertyValue() Method

The getPropertyValue() method is used to return the value of the CSS property declared in the declaration block.

Syntax:

object.getPropertyValue(propertyname)

Parameters: It accepts a single parameter:



  • propertyname: It is a required parameter that contains a string which represents the name of the property to be checked.

Return Value: It returns a string which is used to represent the value of the property.

Example: To show the working of the getPropertyValue() method:

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<html>
  
<head>
    <style>
        body {
            text-align: center;
        }
          
        h1 {
            color: green;
        }
          
        #p1 {
            color: green;
            font-size: 20;
        }
    </style>
</head>
  
<body>
    <h1>GeeksforGeeks</h1>
  
    <p id="p1">
      getPropertyValue() Method
  </p>
  
    <button onclick="myFunction()">
        Get property value
    </button>
  
    <p id="gfg"></p>
  
    <!-- Script to get the 
         property value-->
    <script>
        function myFunction() {
            var x =
                document.styleSheets[
                  0].cssRules[2].style;
            
            document.getElementById(
              "gfg").innerHTML =
                " Value of font-size: "
            + x.getPropertyValue("font-size");
        }
    </script>
</body>
  
</html>

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Output:
Before clicking on the button:

After clicking on the button:

Supported Browsers:

  • Google Chrome
  • Internet Explorer 9.0
  • Firefox
  • Safari
  • Opera


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