More space. It's pretty nuts. Imagine you were stretching a rubber band. What's in-between two points on that rubber that was stretched? Just rubber, albeit thinner and less dense.
In our universe, however, the space that's created is the same as the space that was just there. It'd be like if the rubber band stretched, but didn't lose any density while it did so.
So, is it like, the number of pixels on the screen stay the same, but it takes more “ticks” for a variable representing coordinates to go from 1 to 2: x += 0.09 instead of x += 0.1
No.
The expansion is only apparent on intergalactic scale.
On human scale, and even much larger scales, it does not overcome the fundamental forces. You're not expanding.
