Scrollable Landing Page Design from: https://www.sketchappsources.com/free-source/1975-key-t-one-page-website-template-sketch-freebie-resource.html Top Menu and Side Slider changes (State) depending on the scroll position with the use of variables

Form validation using variables and states

I've put together a quick demo of a menu idea for a mobile website or app. It only took me 20 minutes to build the entire prototype. Feel free to import and dissect.

A simple, one page prototype inspired by Ramotion's Contact Sync (https://dribbble.com/shots/1749645-Contact-Sync?list=users&offset=11). Just play with the on/off switches.