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Result Size: 625 x 571
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<!DOCTYPE html>
<html>
<head>
<style>
#ex1 {
  color: red;
}
</style>
</head>
<body>
<h1>The getPropertyValue() Method</h1>
<p>Click the button to return the value of the color property.</p>
<button onclick="myFunction()">Try it</button>
<div id="ex1">Some text.</div>
<script>
function myFunction() {
  var declaration = document.styleSheets[0].cssRules[0].style;
  var propvalue = declaration.getPropertyValue("color");
  alert(propvalue);
}
</script>
</body>
<!-- Mirrored from www.w3schools.com/jsref/tryit.asp?filename=tryjsref_cssstyle_getpropertyvalue by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 27 Jan 2020 03:08:46 GMT -->
</html>
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