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<!DOCTYPE html> <html> <body> <h1>Change tab-size with JavaScript</h1> <pre id="t1"> I have tabs inside! </pre> <p>Click the "Try it" button to change the tab-size property of the PRE element</p> <button onclick="myFunction()">Try it</button> <script> function myFunction() { document.getElementById("t1").style.MozTabSize = "16"; // Firefox document.getElementById("t1").style.tabSize = "16"; } </script> <p><strong>Note:</strong> Firefox supports an alternative, the MozTabSize property.</p> </body> </html>
