Presentation is the size of a thumbnail

Hi there

Great plugin! Problem is I can’t get my presentation the correct size when embedding it in to tabs in WP. I have set all the correct sizing and the presentation looks great on your site (http://slideonline.com/presentation/17192-chryson-evolution-presentation-july-7-14-ppt). It just stays the size of a thumbnail on mine, do you know why this would be?

Thanks

https://wordpress.org/plugins/slideonline/