Summary
scrollTop gets or sets the number of pixels that the content of an element is scrolled upward.
Syntax and values
// Get the number of pixels scrolled var intElemScrollTop = element.scrollTop;
intElemScrollTop is an integer corresponding to number of pixels that element's content has been scrolled upward.
// Set the number of pixels scrolled element.scrollTop = intValue;
scrollTop can be set to any integer value, however:
- If the element can't be scrolled (e.g. it has no overflow or if the element is non-scrollable), scrollTop is set to 0.
- If set to a value less than 0, scrollTop is set to 0.
- If set to a value greater than the maximum that the content can be scrolled, scrollTop is set to the maximum.
Description
An element's scrollTop is a measurement of the distance of an element's top to its topmost visible content.
When an element content does not generate a vertical scrollbar, then its scrollTop value defaults to 0.
Example
padding-top
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Specification
scrollTop is part of the MSIE's DHTML object model and is implemented in the Mozilla Gecko engine powering Firefox.
scrollTop is also part of a draft specification from the W3C's CSS working group.
Notes
scrollTop is a property of the DHTML object model which was first introduced by MSIE. It is referred as the distance to the top of an element physical scrolling view.