Javascript Element Offset Top. Scrolltop and a little bit of offsettop scrolltop is an element property that gets or sets the top position vertical scroll position of the selected elementscrolltop measures the distance. The elements border box position is specified relative to the document.
If the elements position style property is currently static it will be set to relative to allow for this repositioning. The offsettop property returns the top position in pixels relative to the top of the offsetparent element. The offset method set or returns the offset coordinates for the selected elements relative to the document.
The offset method set or returns the offset coordinates for the selected elements relative to the document.
The offsetparent element is the nearest ancestor that has a position other than static. To get the topleft coordinates of an element relative to its parent you use the offsetleft and offsettop properties. Offset parent is the closest parent that has the css position. The jquery offset method is used to get the position or coordinates of the given element.