The top property of the ScrollToOptions dictionary specifies the number of pixels along the Y axis to scroll the window or element.


top: double


A double.


In our scrolltooptions example (see it live) we include a form that allows the user to enter three values — two numbers representing the left and top properties (i.e. the positions to scroll to along the X and Y axes), and a checkbox indicating whether they want smooth scrolling enabled or not.

When the form is submitted, an event handler is run that puts the entered values into a ScrollToOptions dictionary, and then invokes the Window.ScrollTo() method, passing the dictionary as a parameter:

form.addEventListener('submit', (e) => {
  var scrollOptions = {
    left: leftInput.value,
    top: topInput.value,
    behavior: scrollInput.checked ? 'smooth' : 'auto'



Specification Status Comment
CSS Object Model (CSSOM) View Module
The definition of 'top' in that specification.
Working Draft

Browser compatibility

BCD tables only load in the browser

See also