Well it quite depends from where it starts. If it starts from 150px on the left, that means it’s going to shift it to the right first, then move it 50px. So what it does is move the element TO the direction, so if it’s from the left, and you set the offset to be right, it’s going to move it to the Right
If it was right: 0, then the right border of searchbar would be touching the right side.
If it was left: 0, then the left border of searchbar would be touching the left side.
If you give either one of those values,. it’s a distant of X px FROM their left/right property.