Featured Slider Shifting content up and down

Hi, I'm using the latest free version of Catch Kathmandu. I've got four Featured Images being used in the Featured Post Slider. Each of them are slightly different sizes, but seem to work. Everything looks great on PC in multiple browsers. However, on mobile devices the Features Slider gets smaller and larger as the images change. This makes all the content below the Featured Slider shift up or down slightly. While a minor problem, it's an annoying problem. I'm guessing this is a result of using different sized images. However, is there a way to lock the Featured Slider so it doesn't auto-adjust it's height? http://ultraversepodcast.com/ Thanks, Shag