Calendar stretching vertically

Hi everyone,

I’ve installed the FullCalendar plugin along with the Events manager plugin and set up a page using the [fullcalendar] shortcode.
The page looks lovely when viewed through internet explorer:
http://prntscr.com/rszdn

However when I view it through Safari or Chrome the calendar stretches vertically:
http://prntscr.com/rszhy

Making it very difficult to follow. Has anyone else had this problem or know of a way to fix it?

Thanks,

Matt

http://ww.wp.xz.cn/extend/plugins/wp-fullcalendar/