I'm not at my computer but I believe in the layer you could set the overflow property.
You could insert some CSS like such:
Code: Select all
<style>
#NameOfLayer{overflow-x:hidden;}
</style>
I would probably want to know why it's causing the horizontal scrollbars to see if that can be fixed first. As pablo stated, the scrollbars only appear if the content inside is bigger than the container it is in. The layer needs to be made a little bigger.