window.onload = function() { var iframe = document.createElement('iframe'); iframe.src = 'https://outlook.office365.com/owa/calendar/SecureXNetworks@securexnetworks.com/bookings/'; iframe.style.width = '100%'; // Adjust width as needed iframe.style.height = '1520px'; // Adjust height as needed iframe.style.border = 'none'; // Optionally, remove border // Append the iframe to a container element var container = document.getElementById('iframe-container'); container.appendChild(iframe); };