x
<html><body><h2>What Can JavaScript Do?</h2><p id="demo">JavaScript can hide HTML elements.</p><button type="button" onclick="document.getElementById('demo').style.display='none'">Click Me!</button></body></html> <html><body><h2>What Can JavaScript Do?</h2><p id="demo">JavaScript can hide HTML elements.</p><button type="button" onclick="document.getElementById('demo').style.display='none'">Click Me!</button></body></html>