JavaScript Cannot Get Elements From an iFrame. Retrieving elements from an iFrame can be complicated process due to cross-browser incompatibility. While one method might work for a user accessing ...

John Mueller from Google advises placing JavaScript code underneath the HTML element to ensure that search engines can clearly understand your website.

Did you know you can quickly access the HTML and CSS source code on a webpage? Learn how to use inspect elements to debug, trial, and view webpage code in Microsoft Edge.