I have a question.
I got this so far:
I basically want the highlighted div to cover your device screen no matter how big the device screen is. now i see 2 different divs when i open this on my phone. i only want to see the one that is highlighted. How do I achieve this?
Thanks in advance,
You could use viewport height as your height value:
Using height: 100vh means the element in question always be 100% height of the viewport a user / devie has.
More info: https://web-design-weekly.com/2014/11/18/viewport-units-vw-vh-vmin-vmax/