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<html><style>.class1 {background-color:red;width:50px;height:50px}.class2 {background-color:blue;width:50px;height:50px}</style><body><h1>HTML DOM Attributes</h1><h2>The item() Method</h2><div id="myDiv" class="class1"></div><p>Click to change the value of the second attribute:</p><button onclick="myFunction()">Click Me</button><script>function myFunction() { document.getElementById("myDiv").attributes.item(1).value = "class2";}</script></body><!-- Mirrored from www.w3schools.com/jsref/tryit.asp?filename=tryjsref_namednodemap_item4 by HTTrack Website Copier/3.x [XR&CO'2014], Wed, 21 Dec 2022 17:39:46 GMT --></html>