<!DOCTYPE html> <html> <head> <title>Scrollable test</title> </head> <body> <script src='mouse-helper.js'></script> <script> for (let i = 0; i < 100; i++) { let button = document.createElement('button'); button.textContent = i + ': not clicked'; button.id = 'button-' + i; button.onclick = () => button.textContent = 'clicked'; button.oncontextmenu = event => { event.preventDefault(); button.textContent = 'context menu'; } document.body.appendChild(button); document.body.appendChild(document.createElement('br')); } </script> </body> </html>