To update the initial scroll position for an element scroller, perform the following steps in parallel:
-Although try to scroll to the fragment and - update the initial scroll positions for scroll containers take place at the same - point, and both use a polling system to prediodically re-attempt the scrolling, their goals are - different. Try to scroll to the fragment polls repeatedly until the - indicated part is found since it might take a while for the element to show up during - the document load. Update the initial scroll positions for scroll containers does not - have such a finish condition; it can run indefinitely, as long as the user does not indicate - disinterest. This is necessary to achieve the desired behavior of keeping a - scroll container anchored to the position indicated by CSS properties that determine - the initial scroll position.
-Wait for an implementation-defined amount of time. (This is intended to allow the user agent to optimize the user experience in the face of performance concerns.)
Update the initial scroll position for scroller.
Although try to scroll to the fragment and + update the initial scroll positions for scroll containers take place at the same + point, and both use a polling system to prediodically re-attempt the scrolling, their goals are + different. Try to scroll to the fragment polls repeatedly until the + indicated part is found since it might take a while for the element to show up during + the document load. Update the initial scroll positions for scroll containers does not + have such a finish condition; it can run indefinitely, as long as the user does not indicate + disinterest. This is necessary to achieve the desired behavior of keeping a + scroll container anchored to the position indicated by CSS properties that determine + the initial scroll position.