`; var adContainer = document.getElementById(adContainerID); var framDocument; var adFrame = document.createElement('iframe'); adFrame.style.overflow = "hidden"; adFrame.style.border = "0"; adFrame.width = width; adFrame.height = height; adContainer.appendChild(adFrame); adContainer.style.setProperty('display', 'flex', 'important'); adContainer.style.setProperty('justify-content', 'center', 'important'); adContainer.style.setProperty('align-items', 'center', 'important'); framDocument = adFrame.contentDocument || adFrame.contentWindow.document; framDocument.open(); framDocument.write(iframeContent); framDocument.close(); }