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<html><body><h1>HTML Style Object</h1><h2>The border Property</h2><div id="myDiv" style="border:thick solid blue;">This is myDiv.</div><br><button type="button" onclick="myFunction()">Change border</button><script>function myFunction() { document.getElementById("myDiv").style.border = "thin dotted red";}</script></body><!-- Mirrored from www.w3schools.com/jsref/tryit.asp?filename=tryjsref_style_border2 by HTTrack Website Copier/3.x [XR&CO'2014], Wed, 21 Dec 2022 17:39:48 GMT --></html>