I've spent quite a long time trying to make my websites mobile responsive, therefore I have been using a special module that you use with Google AdSense, the module make sure that the AdSense units are properly responsive. I used to like putting a 336 x 280 rectangle into the body of my content. However, that unit is too big for some mobile phones. So I started using the module which I hoped would have made the rectangular unit smaller. What I found happens is when you put the code into the module, the code for the rectangular unit and then put onto your page, it actually displays it as a 728 x 90 banner, not a rectangle. The only time it displays it as a rectangle is when the screen is a lot smaller, i.e. a mobile phone.
Has anyone else managed to get around using 336 x 280 units on both desktop and mobile devices?