Responsive issue

I am loving your plugin. It is mostly very responsive. My only issue is height. I have testimonies of different length (www.theleftlane.com). Ideally I wish I could make the height of the slider adjust based on the actual amount of text. For now I made them all waaaay to tall so that the biggest one would fit

However, in iphone or other smart phones, it does not fit as the screen is narrower and the text takes up more length.

Can you advise me of a fix?

https://wordpress.org/plugins/testimonialslider/