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<!DOCTYPE html> <html> <body> <h2>Use of The class Attribute in JavaScript</h2> <p>Click the button to hide all elements with class name "city":</p> <button onclick="myFunction()">Hide elements</button> <h2 class="city">London</h2> <p>London is the capital of England.</p> <h2 class="city">Paris</h2> <p>Paris is the capital of France.</p> <h2 class="city">Tokyo</h2> <p>Tokyo is the capital of Japan.</p> <script> function myFunction() { var x = document.getElementsByClassName("city"); for (var i = 0; i < x.length; i++) { x[i].style.display = "none"; } } </script> </body> </html>
