position: absolute;

1) Position absolute has offset properties too,  exactly same like position relative and it doesn't depict any change without them.

In the DOM tree, whichever element has the position relative/absolute property, that element becomes the parent of the child element which has the position absolute property and the child refers the parent like shown in the picture below:

If no element has the position relative/absolute property with them, then the child element with the position absolute property refers the body tag as its' parent like in the picture below: