Please use the Question Tags to state the name and full version number of your Story Format, adding that information to the Question Title just makes it unnecessary long with little actual value.
Both of the methods described in the linked question are basically doing the same thing, although they used slightly different implementations.
1. They use a parent HTML div element to define the overall visual area in which all of the layered images will be displayed in. This is done by styling (using CSS) this div as position: relative; with set width and height values.
2. Add child HTML img elements (images) to that parent and then styling them as position: absolute; which makes any CSS positioning related property (like top, left, bottom, & right) assigned to the img elements to be in relation to the visual area of the parent
note: TheMadExile's example also uses the CSS z-index property to control what happens when two images overlap, it determines who covers who.
You would use the values assigned to CSS positioning related properties of child img element to move it around the parent's visual area.
Without seeing your actual code and knowing the exactl layout you want to achieve it is difficult to suggest a more detailed answer.