New group page:
It has the arrows because the element with the name has overflow-x:hidden, which, in turn, makes overflow-y as visible and auto
Here is some explanation why: https://stackoverflow.com/questions/6421966/css-overflow-x-visible-and-overflow-y-hidden-causing-scr...
Probably best to use either overflow-y:hidden with some height, or overflow-y:clip + padding