How can I make Bootstrap columns all the same height? Affordable solution to train a team and make them project ready. rev2023.3.1.43266. Without knowing the aspect ratio of the iframe, its not easy to implement the intrinsic ratio technique. Do you get any information in the browser console or inspector? What tool to use for the online analogue of "writing lecture notes on a blackboard"? Heres a list of other aspect ratio percentages you can use when defining padding-top. Enter the URL to the iframe, select an aspect ratio, then copy and paste the code! You can overcome this problem by using JS. The following example creates a responsive video by adding an .embed-responsive-item class to an