Drop Shadow in You Tube Video

Hello,
I created a box shadow in the LayerSlider for under a You tube video. It works -except- that it appears that ‘something’ is on top of it when it plays. The images in the vidoe are more grey.
It’s on a local host site, so I am not able to send a link to show you.
Here is the code I placed in the Custom style section of the slide:
box-shadow: 15px 4px 110px -5px black; black; text-shadow: none; opacity: .75; width:585px; height:380px;

And I tried this in the child theme options, after reading it in one of the topics.
#after_layer_slider_1 {
background: url(http://new-wordpress/wp-content/uploads/2013/12/shadow3.png);
background-repeat: no-repeat; background-size: contain;
top: -1px;
}
For this one, I ended up with the shadow on all pages, below the slider.

I appreciate your help! I think I am almost ‘there’.
Thanks -Lynn