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https://www.w3schools.com/js/tryit.asp?filename=tryjs_intro_style <!DOCTYPE html> <html> <body> <h2>What Can JavaScript Do?</h2> <p id="demo">JavaScript can change the style of an HTML element.</p> <button type="button" onclick="document.getElementById('demo').style.fontSize='35px'">Click Me!</button> </body> </html> |