JAVASCRIPT | Change Width Style

Source code:

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<script> function changeWidthStyle(width) { document.getElementById('demo').style.width = width; } </script> Caller example: <button onClick="changeWidthStyle('200px');">Change Width</button> <div id="demo" style="width: 100px; height: 100px; border: 1px solid #000000; margin-top: 10px;"></div>

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