How do I make a mock up Android phone for my website?

[Rubbereon]

How do I make a mock up Android screen and make it look at least somewhat convincing? I know what border-radius is and can use it to make a frame, but that's it, the rest (especially the ui with the battery and everything) gets a bit too complex for me.

I looked up tutorials or even code to copy, but I couldn't find anything other than this https://codepen.io/Wujek_Greg/pen/LmrweG which is impressive don't get me wrong, but it's not what I want. I want something flat, simple and maybe that can scroll vertically, although i'm not sure I'll go that far.