jquery/jquery — comment on commit 5cae50e66e34c277412c01ccb1c24bd6a85d2d8a
File: src/dimensions.js line 50
By mikesherov:

```window > document``` is meant to be ```clientProp > scrollProp```. In this case, choose `clientProp`. If we didn't do this, IE6 would choose offsetProp, which includes the HTML elements default top margin of 2px.

Is that any clearer?