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<html><body>Address:<br><textarea id="myTextarea">342 Alvin RoadDucksburg</textarea><p>Click the button to set the text area to read-only.</p><p><b>Tip:</b> Try to write something in the text area before and after you have clicked the button.</p><button type="button" onclick="myFunction()">Try it</button><script>function myFunction() { document.getElementById("myTextarea").readOnly = "true";}</script></body></html>