Home Page Slider

Hey Andrew, can you create an CSS code for me to increase the height of the home page slider. I know its 420px but is there a possibility to increase that height to 500px maybe, because my images are being cropped. The featured image pixels i use are 1920×1080, I dont know if maybe those dimensions are too big for the slider. I appreciate your help.

Cheers.

URL: http://afrolandtv.com/