right side shadow not showing

Hi, Jos,

I added box shadow to the slideshow by adding a line in file meteor-slides/css/meteor-slides.css

.meteor-slides .mslide img {
	border: 0;
	box-shadow: 10px 10px 5px #888888; important!
}

However, the shadow on the right side is not show. Could you let me know how to fix it?
The page url is

Thanks for your time.

SJ

https://www.ads-software.com/extend/plugins/meteor-slides/