absolute positioning
The box’s position (and possibly size) is specified with the top, right, bottom, and left properties. These properties specify offsets with respect to the box’s containing block. Absolutely positioned boxes are taken out of the normal flow. This means they have no impact on the layout of later siblings. Also, though absolutely positioned boxes have margins, they do not collapse with any other margins.
top, right, bottom, and left properties do not apply because the computed value is static. Hence, the box is laid out according to the normal flow.
