Slider view in mobile and desktop view

Hello everyone,

I use Customizr theme on my web page. On the start page the slider looks fine in the desktop view. But when viewing the slider on a mobile device the button is cropped or even not displayed. The reason is a too long (but still under the maximum number of chars) text in the title and description field. I don′t want to change that text, but is there a possibility to change the heigt of the transparent background area on the slider?

Thanks a lot!