overflow carousel for Images, Posts etc.
https://www.will-myers.com/overflow-carousel-demo

Header Slider which reacts directly on tap and slide. not with a delay.
https://www.will-myers.com/slider-pro-demo

And problem with columns is, when you have two columns within a color section with “no spacing” and background color. in dektop it works, but in mobile there is a spacing between theses columns.