[Plugin: Ultimate Coming Soon Page] Hide the vertical scrollbar?

I need to hide the vertical scroll bar which appears on the coming soon page. Even though the image adjusts to the screen size the scroll bar kinda takes away the neatness. How can I do this? I believe the CSS has to be edited and from Google I noticed overflow-y: hidden; has to do the trick but any help?

Thanks.

http://wordpress.org/extend/plugins/ultimate-coming-soon-page/