Dynamic Container for Iframe

I have an iframe that has a dynamic height. Basically it loads content from an API and displays jobs. When you click on the job, you get more info to it. I want to make a container arround that Iframe that is always like 20px wider and higher than the iframe itself. Is it possible to set the height of the container surrounding the iframe dynamically? I tried it with the basic wix version, but that did not work. Thanks for reading!

maybe Calculation would work for you?