Slider text and links not showing on mobile

Hi, i am using rockabye theme. everything is ok but on mobile the slider text and link on text is not showing. pleae assist me to edit these settings. thanks. my link is http://olxmbdin.move.pk/

Slider size on mobile is also very small

Hi!

Slider size changes proportionally to the screen size of your device. You may count on your own: original width is 1000px and height is around 400px.
If image takes 100% width of the screen ( e.g. 640px ) then you may count that proportional height is 256px. Math works this way=)
As for slider text it is not displayed in the mobile mode at all on all our themes since it takes too much space.