Div automatically scrolls to bottom

I’m not sure if this is a bug or not but I have a show/hide button that shows/hides a div with a list when clicked. When I click the button to show, the div opens and appears to scroll the list so the top aligns with the bottom of the navbar. This obscures the button under the navbar. It’s not necessary to hide the div to see this effect. The markup below will demonstrate this without any javascript.

<a href="#s'+did+'" class="button button-fill link external standings-link">List</a>
<div class="list" id="s'+did+'">

Can I turn this effect off? I would like the button to remain in position and have the div open below it. I tried a few scrolling calls but nothing works (e,g, $$(‘body’).scrollTop(0) )