If you need to get the Y position of a vertically scrolling container, create a text box. Then on the container scroll trigger, set a variable that evaluates the numerical callback value from the event (Y position). Then add a callback that changes the text property of the text box by reading from the variable.

An example of a sticky scrolling sidebar (website)

This is an example of a Navigation Bar that disappears on any downward scroll and re-appears on on any upward scroll.

An example of our vertical scrolling feed, with 2 expandable areas. Feel free to import into your Proto.io account.

Here is a prototype of a music player. Click play and add different sort of beats to the audio. Sample audio is from http://tricoolore.com/ Enjoy!

A basic animation created by using the Proto.io HTML Component with HTML and CSS. No additional images were needed to be imported to create this animation. The HTML and CSS used was found at: http://codepen.io/ajerez/pen/EaEEOW

Using variables on a slider to control the Brightness and Hue of a light bulb

Infinite snap carousel for Credit Card Statements. Cards designs were used from Sketch from: https://www.sketchappsources.com/free-source/2453-credit-card-designs-sketch-freebie-resource.html

A halloween project i have put together using the Proto.io Halloween icon set: https://proto.io/freebies/free-halloween-icons/

Change of the header according to scroll position of content.