I answered your post just to dispel your delusions about Bootstrap.
It was the first indicator which I found and lead me to the difference of the templates itself.
I should have made it more clear, my reply was in relation to the diffrent versions of the templates, not bootstrap itself. :(
As Result, the CSS Pavel provided did not work.
Both Version are quite different
Both Template Versions "Kidzy 3.0.0" and "Kidzy 1.x demopage" are quite different, possible there is a problem within the template itself.
Thank you for bringing this to my attention, I will be a little more careful to make my answers more clear.