The default behavior for browsers is to scroll an anchor to the top of a view port.
If you offset the anchor vertically upwards, you should find it will bring the content down by an equal amount.
You can do this by specifying the position of the anchor as 'relative', and setting the 'top' attribute to a negative value, e.g.
<a style="position:relative; top: -70px;" name="myAnchor"></a>
Some browsers appear to need the anchor taken out of the normal flow, which is solved by simply floating the element.
<a style="float: left; position:relative; top: -70px;" name="myAnchor"></a>
You should find the line above works for FireFox, Chrome and InternetExplorer.