Some websites have some elements that slide horizontally while you are scroll(vertically). Have an example about it in http://www.timeslot.com/. How can I do that with javascript and css? Or do you have any codepen etc. instance about it?
This website probably works with different kind of techniques, for example, playing certain animations on scroll. I can recommend "gsap scrolltriger" or "locomotive-scroll", which has an effect to scroll horizontally. Hope this helps.