[Plugin: AnythingSlider for WordPress] Responsive Design for YouTube

I’m not certain if AnythingSlider does this or maybe there’s another plugin that does. I am using AnythingSlider to present a series of YouTube videos on this entertainment site. Thing is I have the div turned off for the time being because I can’t get the video to get smaller as the screen size changes. Does AnythingSlider help in this? I notice in the settings, I have to give it a fixed width and height and I need something more responsive.