Solved Testimonial Module + Slider / Height issue

Hi. I am using a testimonial module together with a slider next to it. The testimonials are very long so I had to bump up the slider to the same height as the testimonial. Everything looked nice and clean, exactly what I was going for but what I did only works for larger screens. I am working on a 21.5 inch screen, and realised that the testimonial changes in height when looked at on the smaller screen. I contacted divi support team they say a way to fix that is writing a custom css, but unfortunately I don't know enough about it. Was hoping if anyone could share the code or what else I could do to fix it? I have attached 2 screenshots - one shows the content aligned perfectly, another screenshot shows the issue I'm talking

 

UPDATE:

I figures out how to keep both columns aligned. I changed the testimonials height same as the slider and changed the visibility mode for testimonial for overflow content to scroll. It work just fine on the bigger screen, on the smaller screen it's aligned the way I wanted and the testimonial can be scrolled down to continue reading it but there is no indication for the users that the text can be scrolled down. If that is the only easy way to fix my issue without touching on custom css, how can I add a button or an icon which indicates to scroll down? Hope that makes sense

 

This is what I meant that there is no indication to scroll, the text is just cut off, I know that I have to scroll but I need some sort of an icon that would let the users know that they need to scroll down

 

Thanks for your reply, here's the url

http://andzegraphics.co.uk/rapidbee/reviews

 

Thank you so much! That's exactly what I needed! Cheers!