I put a youtube video in the revolution slider as the header but it has awkward white space between the video on mobile. Any idea how to fix it?

{"wp":{"use":false,"adminUrl":"There is white space between the top and the bottom in the slider. How can I remove them? Can't find anyway to cut them all. It seems it has to do with Viewpoint http://www.newbee.no/inex.php/wp-admin","username":"","password":""},"ftp":{"use":false,"url":"","port":"","user":"","password":"","path":""}}

Ok fixed. thanks